Astronomy Almanac for December 2023

Here are some of the astronomical and stargazing highlights for December 2023. All times are in your local time zoneas reported by your browser.

1st December 2023

Titan Occultation by Saturn starting at 1701398950318 ending at 1701405310317.

Titan Eclipsed by Saturn's Shadow starting at 1701399610318 ending at 1701406930317.

Moon's southern limb is most exposed in the maximum southern libration peaking at 1701428513627. The ascending Lunar Node that enabled this occured on 24th Nov 2023 at 11:01 Universal Time.

Titan Transit of Saturn starting at 1701438970315 ending at 1701445450315.

Titan Shadow Transit of Saturn starting at 1701439690315 ending at 1701447130315.

Io Transit of Jupiter starting at 1701448150315 ending at 1701455890314.

Io Shadow Transit of Jupiter starting at 1701450670315 ending at 1701458530314.

2nd December 2023

Meteor Shower. Phoenicids is a southern hemisphere meteor shower.

Titan Occultation by Saturn starting at 1701480370313 ending at 1701486790313.

Titan Eclipsed by Saturn's Shadow starting at 1701481030313 ending at 1701488410312.

Ganymede Transit of Jupiter starting at 1701487270313 ending at 1701492310312.

Ganymede Shadow Transit of Jupiter starting at 1701497410312 ending at 1701503350312.

Europa Transit of Jupiter starting at 1701512110311 ending at 1701520210311.

Europa Shadow Transit of Jupiter starting at 1701517210311 ending at 1701525550310.

Titan Transit of Saturn starting at 1701520390311 ending at 1701526870310.

Titan Shadow Transit of Saturn starting at 1701521110311 ending at 1701528610310.

Io Occultation by Jupiter starting at 1701524710310 ending at 1701532450310.

Io Eclipsed by Jupiter's Shadow starting at 1701527350310 ending at 1701535090310.

3rd December 2023

Titan Occultation by Saturn starting at 1701561790308 ending at 1701568270308.

Titan Eclipsed by Saturn's Shadow starting at 1701562450308 ending at 1701569830308.

Io Transit of Jupiter starting at 1701600910306 ending at 1701608650305.

Titan Transit of Saturn starting at 1701601870306 ending at 1701608290305.

Titan Shadow Transit of Saturn starting at 1701602530306 ending at 1701610030305.

Io Shadow Transit of Jupiter starting at 1701603610306 ending at 1701611470305.

Titan Occultation by Saturn starting at 1701643270303 ending at 1701649690303.

Titan Eclipsed by Saturn's Shadow starting at 1701643930303 ending at 1701651310303.

4th December 2023

Europa Occultation by Jupiter starting at 1701664330302 ending at 1701672550302.

Europa Eclipsed by Jupiter's Shadow starting at 1701669910302 ending at 1701678370301.

Io Occultation by Jupiter starting at 1701677530301 ending at 1701685270301.

Io Eclipsed by Jupiter's Shadow starting at 1701680290301 ending at 1701688030301.

Titan Transit of Saturn starting at 1701683290301 ending at 1701689770300.

Titan Shadow Transit of Saturn starting at 1701683950301 ending at 1701691450300.

Mercury Maximum Elongation peaking at 1701700312456. Best seen in the evening.

Titan Occultation by Saturn starting at 1701724690298 ending at 1701731170298.

Titan Eclipsed by Saturn's Shadow starting at 1701725350298 ending at 1701732730298.

5th December 2023

Io Transit of Jupiter starting at 1701753730297 ending at 1701761470296.

Third Quarter Moon peaking at 1701755398993.

Io Shadow Transit of Jupiter starting at 1701756550297 ending at 1701764350296.

Titan Transit of Saturn starting at 1701764710296 ending at 1701771190296.

Titan Shadow Transit of Saturn starting at 1701765370296 ending at 1701772930296.

Ganymede Occultation by Jupiter starting at 1701795010294 ending at 1701800470294.

Titan Occultation by Saturn starting at 1701806170294 ending at 1701812650293.

Ganymede Eclipsed by Jupiter's Shadow starting at 1701806350294 ending at 1701812410293.

Titan Eclipsed by Saturn's Shadow starting at 1701806830294 ending at 1701814210293.

Europa Transit of Jupiter starting at 1701818590293 ending at 1701826750292.

6th December 2023

Europa Shadow Transit of Jupiter starting at 1701824230292 ending at 1701832630292.

Io Occultation by Jupiter starting at 1701830290292 ending at 1701838030292.

Io Eclipsed by Jupiter's Shadow starting at 1701833170292 ending at 1701840970291.

Titan Transit of Saturn starting at 1701846130291 ending at 1701852670291.

Titan Shadow Transit of Saturn starting at 1701846790291 ending at 1701854350291.

Titan Occultation by Saturn starting at 1701887590289 ending at 1701894070288.

Titan Eclipsed by Saturn's Shadow starting at 1701888250289 ending at 1701895630288.

Io Transit of Jupiter starting at 1701906490288 ending at 1701914290287.

7th December 2023

Io Shadow Transit of Jupiter starting at 1701909490287 ending at 1701917290287.

Titan Transit of Saturn starting at 1701927550286 ending at 1701934090286.

Titan Shadow Transit of Saturn starting at 1701928270286 ending at 1701935770286.

Titan Occultation by Saturn starting at 1701969010284 ending at 1701975550283.

Titan Eclipsed by Saturn's Shadow starting at 1701969670284 ending at 1701977110283.

Europa Occultation by Jupiter starting at 1701970930284 ending at 1701979150283.

Europa Eclipsed by Jupiter's Shadow starting at 1701977050283 ending at 1701985450283.

Io Occultation by Jupiter starting at 1701983110283 ending at 1701990850283.

Io Eclipsed by Jupiter's Shadow starting at 1701986110283 ending at 1701993910282.

8th December 2023

Titan Transit of Saturn starting at 1702008970281 ending at 1702015570281.

Titan Shadow Transit of Saturn starting at 1702009690281 ending at 1702017190281.

Titan Occultation by Saturn starting at 1702050490279 ending at 1702057030279.

Titan Eclipsed by Saturn's Shadow starting at 1702051150279 ending at 1702058530279.

Io Transit of Jupiter starting at 1702059310278 ending at 1702067110278.

Io Shadow Transit of Jupiter starting at 1702062430278 ending at 1702070230278.

9th December 2023

Meteor Shower. Monocerotids is a northern hemisphere meteor shower.

Meteor Shower. Sigma Hydrids is a northern hemisphere meteor shower.

Titan Transit of Saturn starting at 1702090450277 ending at 1702096990276.

Titan Shadow Transit of Saturn starting at 1702091110277 ending at 1702098670276.

Ganymede Transit of Jupiter starting at 1702104190276 ending at 1702109650275.

Ganymede Shadow Transit of Jupiter starting at 1702116730275 ending at 1702122670275.

Europa Transit of Jupiter starting at 1702125190275 ending at 1702133350274.

Europa Shadow Transit of Jupiter starting at 1702131310274 ending at 1702139710274.

Titan Occultation by Saturn starting at 1702131910274 ending at 1702138450274.

Titan Eclipsed by Saturn's Shadow starting at 1702132570274 ending at 1702140010274.

Io Occultation by Jupiter starting at 1702135930274 ending at 1702143670273.

Io Eclipsed by Jupiter's Shadow starting at 1702139050274 ending at 1702146790273.

10th December 2023

Meteor Shower. Puppid-Velids is a southern hemisphere meteor shower.

Titan Transit of Saturn starting at 1702171870272 ending at 1702178470271.

Titan Shadow Transit of Saturn starting at 1702172530272 ending at 1702180090271.

Io Transit of Jupiter starting at 1702212130269 ending at 1702219930269.

Titan Occultation by Saturn starting at 1702213330269 ending at 1702219930269.

Titan Eclipsed by Saturn's Shadow starting at 1702213990269 ending at 1702221430269.

Io Shadow Transit of Jupiter starting at 1702215370269 ending at 1702223170269.

11th December 2023

Titan Transit of Saturn starting at 1702253290267 ending at 1702259890267.

Titan Shadow Transit of Saturn starting at 1702253950267 ending at 1702261510266.

Europa Occultation by Jupiter starting at 1702277590265 ending at 1702285870265.

Europa Eclipsed by Jupiter's Shadow starting at 1702284190265 ending at 1702292650265.

Io Occultation by Jupiter starting at 1702288750265 ending at 1702296490264.

Io Eclipsed by Jupiter's Shadow starting at 1702291990265 ending at 1702299730264.

Titan Occultation by Saturn starting at 1702294810264 ending at 1702301410264.

Titan Eclipsed by Saturn's Shadow starting at 1702295470264 ending at 1702302910264.

Moon's western limb is most exposed in the maximum western libration peaking at 1702320098262. The apogee that enabled this occured on 4th Dec 2023 at 18:41 Universal Time.

Titan Transit of Saturn starting at 1702334710262 ending at 1702341370262.

Titan Shadow Transit of Saturn starting at 1702335370262 ending at 1702342990262.

12th December 2023

Io Transit of Jupiter starting at 1702364950260 ending at 1702372750260.

Io Shadow Transit of Jupiter starting at 1702368310260 ending at 1702376110260.

Titan Occultation by Saturn starting at 1702376230260 ending at 1702382830259.

Titan Eclipsed by Saturn's Shadow starting at 1702376890260 ending at 1702384330259.

Ganymede Occultation by Jupiter starting at 1702412110257 ending at 1702417930257.

Titan Transit of Saturn starting at 1702416130257 ending at 1702422790257.

Titan Shadow Transit of Saturn starting at 1702416850257 ending at 1702424410257.

New Moon peaking at 1702423954488. Around this time is a great time to do deep sky observing.

13th December 2023

Ganymede Eclipsed by Jupiter's Shadow starting at 1702425670257 ending at 1702431730256.

Europa Transit of Jupiter starting at 1702431730256 ending at 1702439950256.

Europa Shadow Transit of Jupiter starting at 1702438390256 ending at 1702446730255.

Io Occultation by Jupiter starting at 1702441510256 ending at 1702449310255.

Io Eclipsed by Jupiter's Shadow starting at 1702444930255 ending at 1702452670255.

Titan Occultation by Saturn starting at 1702457650255 ending at 1702464310254.

Titan Eclipsed by Saturn's Shadow starting at 1702458310255 ending at 1702465810254.

Titan Transit of Saturn starting at 1702497550252 ending at 1702504270252.

Titan Shadow Transit of Saturn starting at 1702498270252 ending at 1702505830252.

14th December 2023

Meteor Shower. Geminids is a northern hemisphere meteor shower.

Io Transit of Jupiter starting at 1702517770251 ending at 1702525570251.

Io Shadow Transit of Jupiter starting at 1702521250251 ending at 1702529050250.

Titan Occultation by Saturn starting at 1702539130250 ending at 1702545790249.

Titan Eclipsed by Saturn's Shadow starting at 1702539790250 ending at 1702547230249.

Titan Transit of Saturn starting at 1702579030247 ending at 1702585690247.

Titan Shadow Transit of Saturn starting at 1702579690247 ending at 1702587310247.

Europa Occultation by Jupiter starting at 1702584250247 ending at 1702592530247.

Europa Eclipsed by Jupiter's Shadow starting at 1702591330247 ending at 1702599790246.

Io Occultation by Jupiter starting at 1702594330247 ending at 1702602070246.

Io Eclipsed by Jupiter's Shadow starting at 1702597810246 ending at 1702605610246.

15th December 2023

Titan Occultation by Saturn starting at 1702620550245 ending at 1702627210245.

Titan Eclipsed by Saturn's Shadow starting at 1702621210245 ending at 1702628710245.

Moon's northern limb is most exposed in the maximum northern libration peaking at 1702653866599. The descending Lunar Node that enabled this occured on 8th Dec 2023 at 15:24 Universal Time.

Titan Transit of Saturn starting at 1702660450243 ending at 1702667170242.

Titan Shadow Transit of Saturn starting at 1702661110243 ending at 1702668730242.

Io Transit of Jupiter starting at 1702670590242 ending at 1702678390242.

Io Shadow Transit of Jupiter starting at 1702674190242 ending at 1702681990241.

16th December 2023

Meteor Shower. Comae Berenicids is a northern hemisphere meteor shower.

Titan Occultation by Saturn starting at 1702701970240 ending at 1702708690240.

Titan Eclipsed by Saturn's Shadow starting at 1702702630240 ending at 1702710130240.

Ganymede Transit of Jupiter starting at 1702721470239 ending at 1702727230239.

Ganymede Shadow Transit of Jupiter starting at 1702736050238 ending at 1702741930238.

Europa Transit of Jupiter starting at 1702738390238 ending at 1702746610238.

Titan Transit of Saturn starting at 1702741870238 ending at 1702748590237.

Titan Shadow Transit of Saturn starting at 1702742530238 ending at 1702750150237.

Europa Shadow Transit of Jupiter starting at 1702745470238 ending at 1702753810237.

Io Occultation by Jupiter starting at 1702747150237 ending at 1702754950237.

Io Eclipsed by Jupiter's Shadow starting at 1702750750237 ending at 1702758550237.

17th December 2023

Titan Occultation by Saturn starting at 1702783450235 ending at 1702790170235.

Titan Eclipsed by Saturn's Shadow starting at 1702784110235 ending at 1702791610235.

Titan Transit of Saturn starting at 1702823290233 ending at 1702830070233.

Io Transit of Jupiter starting at 1702823410233 ending at 1702831210232.

Titan Shadow Transit of Saturn starting at 1702823950233 ending at 1702831630232.

Io Shadow Transit of Jupiter starting at 1702827130233 ending at 1702834930232.

18th December 2023

Titan Occultation by Saturn starting at 1702864870230 ending at 1702871590230.

Titan Eclipsed by Saturn's Shadow starting at 1702865530230 ending at 1702873030230.

Europa Occultation by Jupiter starting at 1702890970229 ending at 1702899310228.

Europa Eclipsed by Jupiter's Shadow starting at 1702898530228 ending at 1702906990228.

Io Occultation by Jupiter starting at 1702899970228 ending at 1702907770228.

Io Eclipsed by Jupiter's Shadow starting at 1702903690228 ending at 1702911430228.

Titan Transit of Saturn starting at 1702904710228 ending at 1702911490228.

Titan Shadow Transit of Saturn starting at 1702905430228 ending at 1702913050228.

19th December 2023

Meteor Shower. December Leonis Minorids is a northern hemisphere meteor shower.

Titan Occultation by Saturn starting at 1702946290226 ending at 1702953070225.

Titan Eclipsed by Saturn's Shadow starting at 1702946950226 ending at 1702954510225.

Io Transit of Jupiter starting at 1702976230224 ending at 1702984030223.

Io Shadow Transit of Jupiter starting at 1702980070224 ending at 1702987870223.

Titan Transit of Saturn starting at 1702986190223 ending at 1702992970223.

Titan Shadow Transit of Saturn starting at 1702986850223 ending at 1702994470223.

Lunar X and V clair-obscur effects gradually becoming more visible on the Moon starting at 1702998000000 ending at 1703014200000.

First Quarter Moon peaking at 1703011188006.

Titan Occultation by Saturn starting at 1703027770221 ending at 1703034550220.

Titan Eclipsed by Saturn's Shadow starting at 1703028430221 ending at 1703035930220.

Ganymede Occultation by Jupiter starting at 1703029570221 ending at 1703035690220.

20th December 2023

Ganymede Eclipsed by Jupiter's Shadow starting at 1703045050220 ending at 1703051050219.

Europa Transit of Jupiter starting at 1703045050220 ending at 1703053330219.

Europa Shadow Transit of Jupiter starting at 1703052550219 ending at 1703060890219.

Io Occultation by Jupiter starting at 1703052790219 ending at 1703060590219.

Io Eclipsed by Jupiter's Shadow starting at 1703056630219 ending at 1703064370219.

Titan Transit of Saturn starting at 1703067610218 ending at 1703074450218.

Titan Shadow Transit of Saturn starting at 1703068270218 ending at 1703075890218.

Titan Occultation by Saturn starting at 1703109190216 ending at 1703115970215.

Titan Eclipsed by Saturn's Shadow starting at 1703109850216 ending at 1703117410215.

Lunar Plato’s Hook clair-obscur effect starting at 1703115600000 ending at 1703131800000.

21st December 2023

Io Transit of Jupiter starting at 1703129110215 ending at 1703136910214.

Io Shadow Transit of Jupiter starting at 1703133010214 ending at 1703140810214.

Titan Transit of Saturn starting at 1703149030214 ending at 1703155870213.

Titan Shadow Transit of Saturn starting at 1703149690213 ending at 1703157370213.

Titan Occultation by Saturn starting at 1703190610211 ending at 1703197450211.

Titan Eclipsed by Saturn's Shadow starting at 1703191270211 ending at 1703198830211.

Europa Occultation by Jupiter starting at 1703197690211 ending at 1703206090210.

22nd December 2023

Meteor Shower. Ursids is a northern hemisphere meteor shower.

Io Occultation by Jupiter starting at 1703205670210 ending at 1703213410210.

Europa Eclipsed by Jupiter's Shadow starting at 1703205670210 ending at 1703214130210.

Io Eclipsed by Jupiter's Shadow starting at 1703209510210 ending at 1703217310209.

Solstice peaking at 1703215654523. In the northern hemisphere it is the shortest day of the year, so with such long nights it is a great time for astronomy especially deep sky observing. While in the southern hemisphere it is the longest day of the year so you may want to focus on the brighter objects.

Titan Transit of Saturn starting at 1703230450209 ending at 1703237350208.

Titan Shadow Transit of Saturn starting at 1703231110209 ending at 1703238790208.

Titan Occultation by Saturn starting at 1703272090206 ending at 1703278930206.

Titan Eclipsed by Saturn's Shadow starting at 1703272750206 ending at 1703280310206.

Io Transit of Jupiter starting at 1703281930206 ending at 1703289730205.

Io Shadow Transit of Jupiter starting at 1703285950205 ending at 1703293750205.

23rd December 2023

Titan Transit of Saturn starting at 1703311870204 ending at 1703318770203.

Titan Shadow Transit of Saturn starting at 1703312530204 ending at 1703320210203.

Ganymede Transit of Jupiter starting at 1703339050202 ending at 1703345110202.

Europa Transit of Jupiter starting at 1703351710201 ending at 1703360050201.

Titan Occultation by Saturn starting at 1703353510201 ending at 1703360350201.

Titan Eclipsed by Saturn's Shadow starting at 1703354170201 ending at 1703361730201.

Ganymede Shadow Transit of Jupiter starting at 1703355370201 ending at 1703361250201.

Moon's eastern limb is most exposed in the maximum eastern libration peaking at 1703357478123. The perigee that enabled this occured on 16th Dec 2023 at 18:51 Universal Time.

Io Occultation by Jupiter starting at 1703358490201 ending at 1703366290201.

Europa Shadow Transit of Jupiter starting at 1703359630201 ending at 1703367970200.

Io Eclipsed by Jupiter's Shadow starting at 1703362450201 ending at 1703370250200.

24th December 2023

Titan Transit of Saturn starting at 1703393350199 ending at 1703400250199.

Titan Shadow Transit of Saturn starting at 1703394010199 ending at 1703401690198.

Io Transit of Jupiter starting at 1703434810196 ending at 1703442610196.

Titan Occultation by Saturn starting at 1703434990196 ending at 1703441830196.

Titan Eclipsed by Saturn's Shadow starting at 1703435590196 ending at 1703443210196.

Io Shadow Transit of Jupiter starting at 1703438890196 ending at 1703446690196.

25th December 2023

Titan Transit of Saturn starting at 1703474770194 ending at 1703481730194.

Titan Shadow Transit of Saturn starting at 1703475430194 ending at 1703483110194.

Europa Occultation by Jupiter starting at 1703504530192 ending at 1703512930192.

Io Occultation by Jupiter starting at 1703511310192 ending at 1703519110191.

Europa Eclipsed by Jupiter's Shadow starting at 1703512870192 ending at 1703521330191.

Io Eclipsed by Jupiter's Shadow starting at 1703515390192 ending at 1703523190191.

Titan Occultation by Saturn starting at 1703516410192 ending at 1703523310191.

Titan Eclipsed by Saturn's Shadow starting at 1703517010192 ending at 1703524630191.

26th December 2023

Titan Transit of Saturn starting at 1703556190189 ending at 1703563150189.

Titan Shadow Transit of Saturn starting at 1703556850189 ending at 1703564530189.

Io Transit of Jupiter starting at 1703587630187 ending at 1703595430187.

Io Shadow Transit of Jupiter starting at 1703591830187 ending at 1703599630187.

Titan Occultation by Saturn starting at 1703597830187 ending at 1703604790186.

Titan Eclipsed by Saturn's Shadow starting at 1703598490187 ending at 1703606110186.

27th December 2023

Full Moon peaking at 1703637232938.

Titan Transit of Saturn starting at 1703637610184 ending at 1703644630184.

Titan Shadow Transit of Saturn starting at 1703638270184 ending at 1703646010184.

Ganymede Occultation by Jupiter starting at 1703647270184 ending at 1703653690183.

Europa Transit of Jupiter starting at 1703658490183 ending at 1703666830183.

Io Occultation by Jupiter starting at 1703664190183 ending at 1703671930182.

Ganymede Eclipsed by Jupiter's Shadow starting at 1703664310183 ending at 1703670310182.

Europa Shadow Transit of Jupiter starting at 1703666710183 ending at 1703675050182.

Io Eclipsed by Jupiter's Shadow starting at 1703668330183 ending at 1703676070182.

Titan Occultation by Saturn starting at 1703679310182 ending at 1703686210181.

Titan Eclipsed by Saturn's Shadow starting at 1703679910182 ending at 1703687530181.

Titan Transit of Saturn starting at 1703719090180 ending at 1703726050179.

Titan Shadow Transit of Saturn starting at 1703719690180 ending at 1703727430179.

28th December 2023

Io Transit of Jupiter starting at 1703740510178 ending at 1703748310178.

Io Shadow Transit of Jupiter starting at 1703744770178 ending at 1703752570178.

Titan Occultation by Saturn starting at 1703760730177 ending at 1703767690177.

Titan Eclipsed by Saturn's Shadow starting at 1703761330177 ending at 1703768950177.

Moon's southern limb is most exposed in the maximum southern libration peaking at 1703771606434. The ascending Lunar Node that enabled this occured on 21st Dec 2023 at 13:53 Universal Time.

Titan Transit of Saturn starting at 1703800510175 ending at 1703807530174.

Titan Shadow Transit of Saturn starting at 1703801110175 ending at 1703808850174.

29th December 2023

Europa Occultation by Jupiter starting at 1703811310174 ending at 1703819770174.

Io Occultation by Jupiter starting at 1703817010174 ending at 1703824810173.

Europa Eclipsed by Jupiter's Shadow starting at 1703820010174 ending at 1703828470173.

Io Eclipsed by Jupiter's Shadow starting at 1703821270173 ending at 1703829010173.

Titan Occultation by Saturn starting at 1703842150172 ending at 1703849170172.

Titan Eclipsed by Saturn's Shadow starting at 1703842810172 ending at 1703850430172.

Titan Transit of Saturn starting at 1703881930170 ending at 1703889010169.

Titan Shadow Transit of Saturn starting at 1703882590170 ending at 1703890330169.

Io Transit of Jupiter starting at 1703893390169 ending at 1703901190169.

30th December 2023

Io Shadow Transit of Jupiter starting at 1703897710169 ending at 1703905510168.

Titan Occultation by Saturn starting at 1703923630167 ending at 1703930590167.

Titan Eclipsed by Saturn's Shadow starting at 1703924230167 ending at 1703931850167.

Ganymede Transit of Jupiter starting at 1703956990165 ending at 1703963350165.

Titan Transit of Saturn starting at 1703963350165 ending at 1703970430165.

Titan Shadow Transit of Saturn starting at 1703964010165 ending at 1703971750164.

Europa Transit of Jupiter starting at 1703965270165 ending at 1703973610164.

Io Occultation by Jupiter starting at 1703969890165 ending at 1703977690164.

Europa Shadow Transit of Jupiter starting at 1703973730164 ending at 1703982130164.

Io Eclipsed by Jupiter's Shadow starting at 1703974210164 ending at 1703981950164.

Ganymede Shadow Transit of Jupiter starting at 1703974810164 ending at 1703980630164.

31st December 2023

Titan Occultation by Saturn starting at 1704005050162 ending at 1704012070162.

Titan Eclipsed by Saturn's Shadow starting at 1704005650162 ending at 1704013330162.

Titan Transit of Saturn starting at 1704044830160 ending at 1704051910160.

Titan Shadow Transit of Saturn starting at 1704045430160 ending at 1704053170160.

Io Transit of Jupiter starting at 1704046210160 ending at 1704054070160.

Io Shadow Transit of Jupiter starting at 1704050650160 ending at 1704058450159.