Astronomy Almanac for September 2023

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

1st September 2023

Meteor Shower. Aurigids is a bright northern hemisphere meteor shower.
Europa Shadow Transit of Jupiter starting at 1693533310241 ending at 1693541710240.
Titan Transit of Saturn starting at 1693540990240 ending at 1693548010240.
Titan Shadow Transit of Saturn starting at 1693540990240 ending at 1693548190240.
Europa Transit of Jupiter starting at 1693542730240 ending at 1693550710240.
Io Eclipsed by Jupiter's Shadow starting at 1693575670238 ending at 1693583530238.
Io Occultation by Jupiter starting at 1693580290238 ending at 1693588030238.
Titan Occultation by Saturn starting at 1693580950238 ending at 1693587910238.
Titan Eclipsed by Saturn's Shadow starting at 1693580950238 ending at 1693588090238.

2nd September 2023

Titan Transit of Saturn starting at 1693622410236 ending at 1693629430235.
Titan Shadow Transit of Saturn starting at 1693622410236 ending at 1693629610235.
Io Shadow Transit of Jupiter starting at 1693651750234 ending at 1693659550233.
Io Transit of Jupiter starting at 1693656370234 ending at 1693664050233.
Titan Occultation by Saturn starting at 1693662370233 ending at 1693669330233.
Titan Eclipsed by Saturn's Shadow starting at 1693662370233 ending at 1693669510233.
Europa Eclipsed by Jupiter's Shadow starting at 1693684930232 ending at 1693693330231.
Europa Occultation by Jupiter starting at 1693694230231 ending at 1693702270231.

3rd September 2023

Titan Transit of Saturn starting at 1693703830231 ending at 1693710850230.
Titan Shadow Transit of Saturn starting at 1693703890231 ending at 1693711030230.
Io Eclipsed by Jupiter's Shadow starting at 1693728610229 ending at 1693736410229.
Io Occultation by Jupiter starting at 1693733170229 ending at 1693740850229.
Titan Occultation by Saturn starting at 1693743790228 ending at 1693750690228.
Titan Eclipsed by Saturn's Shadow starting at 1693743850228 ending at 1693750930228.
Ganymede Eclipsed by Jupiter's Shadow starting at 1693755790228 ending at 1693762390227.
Ganymede Occultation by Jupiter starting at 1693775470226 ending at 1693779010226.
Titan Transit of Saturn starting at 1693785250226 ending at 1693792210226.
Titan Shadow Transit of Saturn starting at 1693785310226 ending at 1693792450225.

4th September 2023

Io Shadow Transit of Jupiter starting at 1693804690225 ending at 1693812490224.
Io Transit of Jupiter starting at 1693809190224 ending at 1693816870224.
Titan Occultation by Saturn starting at 1693825210224 ending at 1693832110223.
Titan Eclipsed by Saturn's Shadow starting at 1693825270224 ending at 1693832350223.
Europa Shadow Transit of Jupiter starting at 1693840390223 ending at 1693848790222.
Europa Transit of Jupiter starting at 1693849570222 ending at 1693857550222.
Titan Transit of Saturn starting at 1693866670221 ending at 1693873630221.
Titan Shadow Transit of Saturn starting at 1693866730221 ending at 1693873930221.

5th September 2023

Io Eclipsed by Jupiter's Shadow starting at 1693881490220 ending at 1693889350220.
Io Occultation by Jupiter starting at 1693885990220 ending at 1693893730219.
Titan Occultation by Saturn starting at 1693906630219 ending at 1693913530218.
Titan Eclipsed by Saturn's Shadow starting at 1693906750219 ending at 1693913830218.
Titan Transit of Saturn starting at 1693948090216 ending at 1693954990216.
Titan Shadow Transit of Saturn starting at 1693948150216 ending at 1693955350216.
Io Shadow Transit of Jupiter starting at 1693957570216 ending at 1693965370215.

6th September 2023

Io Transit of Jupiter starting at 1693962010215 ending at 1693969690215.
Titan Occultation by Saturn starting at 1693988050214 ending at 1693994950213.
Titan Eclipsed by Saturn's Shadow starting at 1693988170214 ending at 1693995250213.
Europa Eclipsed by Jupiter's Shadow starting at 1693992010214 ending at 1694000410213.
Europa Occultation by Jupiter starting at 1694001010213 ending at 1694009050213.
Moon's eastern limb is most exposed in the maximum eastern libration peaking at 1694015674204. The perigee that enabled this occured on 30th Aug 2023 at 15:54 Universal Time.
Titan Transit of Saturn starting at 1694029510211 ending at 1694036410211.
Titan Shadow Transit of Saturn starting at 1694029570211 ending at 1694036770211.
Io Eclipsed by Jupiter's Shadow starting at 1694034430211 ending at 1694042230211.
Io Occultation by Jupiter starting at 1694038870211 ending at 1694046550210.
Third Quarter Moon peaking at 1694038902724.

7th September 2023

Ganymede Shadow Transit of Jupiter starting at 1694065870209 ending at 1694072410209.
Titan Occultation by Saturn starting at 1694069470209 ending at 1694076370209.
Titan Eclipsed by Saturn's Shadow starting at 1694069590209 ending at 1694076670209.
Ganymede Transit of Jupiter starting at 1694085130208 ending at 1694088370208.
Io Shadow Transit of Jupiter starting at 1694110510207 ending at 1694118310206.
Titan Transit of Saturn starting at 1694110930207 ending at 1694117830206.
Titan Shadow Transit of Saturn starting at 1694110990207 ending at 1694118190206.
Io Transit of Jupiter starting at 1694114890206 ending at 1694122570206.

8th September 2023

Europa Shadow Transit of Jupiter starting at 1694147470204 ending at 1694155870204.
Titan Occultation by Saturn starting at 1694150950204 ending at 1694157730204.
Titan Eclipsed by Saturn's Shadow starting at 1694151070204 ending at 1694158150204.
Europa Transit of Jupiter starting at 1694156350204 ending at 1694164330203.
Io Eclipsed by Jupiter's Shadow starting at 1694187310202 ending at 1694195170201.
Io Occultation by Jupiter starting at 1694191690202 ending at 1694199370201.
Titan Transit of Saturn starting at 1694192350202 ending at 1694199190201.
Titan Shadow Transit of Saturn starting at 1694192470202 ending at 1694199610201.

9th September 2023

Meteor Shower. September Epsilon Perseids is a northern hemisphere meteor shower.
Titan Occultation by Saturn starting at 1694232370199 ending at 1694239150199.
Titan Eclipsed by Saturn's Shadow starting at 1694232490199 ending at 1694239570199.
Io Shadow Transit of Jupiter starting at 1694263390197 ending at 1694271190197.
Io Transit of Jupiter starting at 1694267710197 ending at 1694275390197.
Titan Transit of Saturn starting at 1694273710197 ending at 1694280610196.
Titan Shadow Transit of Saturn starting at 1694273890197 ending at 1694281030196.
Europa Eclipsed by Jupiter's Shadow starting at 1694299090195 ending at 1694307490195.

10th September 2023

Europa Occultation by Jupiter starting at 1694307790195 ending at 1694315830194.
Titan Occultation by Saturn starting at 1694313790194 ending at 1694320570194.
Titan Eclipsed by Saturn's Shadow starting at 1694313910194 ending at 1694320990194.
Moon's southern limb is most exposed in the maximum southern libration peaking at 1694331819309. The ascending Lunar Node that enabled this occured on 3rd Sep 2023 at 07:43 Universal Time.
Io Eclipsed by Jupiter's Shadow starting at 1694340250193 ending at 1694348050192.
Io Occultation by Jupiter starting at 1694344510193 ending at 1694352190192.
Titan Transit of Saturn starting at 1694355130192 ending at 1694362030192.
Titan Shadow Transit of Saturn starting at 1694355310192 ending at 1694362450192.
Ganymede Eclipsed by Jupiter's Shadow starting at 1694375050191 ending at 1694381650190.

11th September 2023

Ganymede Occultation by Jupiter starting at 1694393650190 ending at 1694396890189.
Titan Occultation by Saturn starting at 1694395210190 ending at 1694401990189.
Titan Eclipsed by Saturn's Shadow starting at 1694395390190 ending at 1694402410189.
Io Shadow Transit of Jupiter starting at 1694416330188 ending at 1694424130188.
Io Transit of Jupiter starting at 1694420530188 ending at 1694428210188.
Titan Transit of Saturn starting at 1694436550187 ending at 1694443390187.
Titan Shadow Transit of Saturn starting at 1694436730187 ending at 1694443870187.
Europa Shadow Transit of Jupiter starting at 1694454550186 ending at 1694462950186.
Europa Transit of Jupiter starting at 1694463070186 ending at 1694471050185.
Titan Occultation by Saturn starting at 1694476630185 ending at 1694483410184.

12th September 2023

Titan Eclipsed by Saturn's Shadow starting at 1694476810185 ending at 1694483890184.
Io Eclipsed by Jupiter's Shadow starting at 1694493130184 ending at 1694500990183.
Io Occultation by Jupiter starting at 1694497330183 ending at 1694505010183.
Titan Transit of Saturn starting at 1694517970182 ending at 1694524810182.
Titan Shadow Transit of Saturn starting at 1694518150182 ending at 1694525350182.
Titan Occultation by Saturn starting at 1694558050180 ending at 1694564830179.
Titan Eclipsed by Saturn's Shadow starting at 1694558230180 ending at 1694565310179.

13th September 2023

Io Shadow Transit of Jupiter starting at 1694569210179 ending at 1694577010179.
Io Transit of Jupiter starting at 1694573350179 ending at 1694581030178.
Titan Transit of Saturn starting at 1694599390177 ending at 1694606170177.
Titan Shadow Transit of Saturn starting at 1694599570177 ending at 1694606770177.
Europa Eclipsed by Jupiter's Shadow starting at 1694606170177 ending at 1694614570176.
Europa Occultation by Jupiter starting at 1694614510176 ending at 1694622490176.
Titan Occultation by Saturn starting at 1694639530175 ending at 1694646250175.
Titan Eclipsed by Saturn's Shadow starting at 1694639710175 ending at 1694646730175.
Io Eclipsed by Jupiter's Shadow starting at 1694646070175 ending at 1694653870174.

14th September 2023

Io Occultation by Jupiter starting at 1694650150174 ending at 1694657830174.
Titan Transit of Saturn starting at 1694680810173 ending at 1694687590172.
Titan Shadow Transit of Saturn starting at 1694680990173 ending at 1694688190172.
Ganymede Shadow Transit of Jupiter starting at 1694685130172 ending at 1694691550172.
Ganymede Transit of Jupiter starting at 1694703130171 ending at 1694706010171.
Titan Occultation by Saturn starting at 1694720950170 ending at 1694727670170.
Titan Eclipsed by Saturn's Shadow starting at 1694721130170 ending at 1694728210170.
Io Shadow Transit of Jupiter starting at 1694722150170 ending at 1694729950170.
Io Transit of Jupiter starting at 1694726170170 ending at 1694733850169.

15th September 2023

New Moon peaking at 1694742030488. Around this time is a great time to do deep sky observing.
Europa Shadow Transit of Jupiter starting at 1694761630168 ending at 1694770030167.
Titan Transit of Saturn starting at 1694762230168 ending at 1694769010167.
Titan Shadow Transit of Saturn starting at 1694762470168 ending at 1694769610167.
Europa Transit of Jupiter starting at 1694769790167 ending at 1694777710167.
Io Eclipsed by Jupiter's Shadow starting at 1694798950165 ending at 1694806810165.
Titan Occultation by Saturn starting at 1694802370165 ending at 1694809030165.
Titan Eclipsed by Saturn's Shadow starting at 1694802550165 ending at 1694809630165.
Io Occultation by Jupiter starting at 1694802970165 ending at 1694810650165.

16th September 2023

Titan Transit of Saturn starting at 1694843650163 ending at 1694850370162.
Titan Shadow Transit of Saturn starting at 1694843890163 ending at 1694851030162.
Io Shadow Transit of Jupiter starting at 1694875030161 ending at 1694882830160.
Io Transit of Jupiter starting at 1694878990161 ending at 1694886670160.
Titan Occultation by Saturn starting at 1694883790160 ending at 1694890450160.
Titan Eclipsed by Saturn's Shadow starting at 1694884030160 ending at 1694891050160.

17th September 2023

Europa Eclipsed by Jupiter's Shadow starting at 1694913250159 ending at 1694921650158.
Europa Occultation by Jupiter starting at 1694921230158 ending at 1694929210158.
Titan Transit of Saturn starting at 1694925070158 ending at 1694931790158.
Titan Shadow Transit of Saturn starting at 1694925310158 ending at 1694932450158.
Io Eclipsed by Jupiter's Shadow starting at 1694951890156 ending at 1694959690156.
Io Occultation by Jupiter starting at 1694955790156 ending at 1694963470156.
Titan Occultation by Saturn starting at 1694965210156 ending at 1694971870155.
Titan Eclipsed by Saturn's Shadow starting at 1694965450156 ending at 1694972530155.
Ganymede Eclipsed by Jupiter's Shadow starting at 1694994310154 ending at 1695000790153.

18th September 2023

Titan Transit of Saturn starting at 1695006490153 ending at 1695013210153.
Titan Shadow Transit of Saturn starting at 1695006730153 ending at 1695013870153.
Ganymede Occultation by Jupiter starting at 1695011410153 ending at 1695014470153.
Io Shadow Transit of Jupiter starting at 1695027970152 ending at 1695035770151.
Io Transit of Jupiter starting at 1695031810152 ending at 1695039490151.
Titan Occultation by Saturn starting at 1695046690151 ending at 1695053290150.
Titan Eclipsed by Saturn's Shadow starting at 1695046930151 ending at 1695053950150.
Europa Shadow Transit of Jupiter starting at 1695068710149 ending at 1695077110149.
Europa Transit of Jupiter starting at 1695076450149 ending at 1695084370148.

19th September 2023

Titan Transit of Saturn starting at 1695087910148 ending at 1695094570148.
Titan Shadow Transit of Saturn starting at 1695088150148 ending at 1695095350148.
Io Eclipsed by Jupiter's Shadow starting at 1695104770147 ending at 1695112630147.
Io Occultation by Jupiter starting at 1695108610147 ending at 1695116290147.
Neptune Opposition peaking at 1695121657218.
Titan Occultation by Saturn starting at 1695128110146 ending at 1695134710145.
Titan Eclipsed by Saturn's Shadow starting at 1695128350146 ending at 1695135430145.
Moon's western limb is most exposed in the maximum western libration peaking at 1695138102933. The apogee that enabled this occured on 12th Sep 2023 at 15:41 Universal Time.

20th September 2023

Titan Transit of Saturn starting at 1695169330143 ending at 1695175990143.
Titan Shadow Transit of Saturn starting at 1695169570143 ending at 1695176770143.
Io Shadow Transit of Jupiter starting at 1695180850143 ending at 1695188650142.
Io Transit of Jupiter starting at 1695184630143 ending at 1695192310142.
Titan Occultation by Saturn starting at 1695209530141 ending at 1695216130141.
Titan Eclipsed by Saturn's Shadow starting at 1695209770141 ending at 1695216850141.
Europa Eclipsed by Jupiter's Shadow starting at 1695220330140 ending at 1695228730140.
Europa Occultation by Jupiter starting at 1695227890140 ending at 1695235870139.
Titan Transit of Saturn starting at 1695250750139 ending at 1695257410138.
Titan Shadow Transit of Saturn starting at 1695251050139 ending at 1695258190138.

21st September 2023

Io Eclipsed by Jupiter's Shadow starting at 1695257710138 ending at 1695265510138.
Io Occultation by Jupiter starting at 1695261370138 ending at 1695269050137.
Titan Occultation by Saturn starting at 1695290950136 ending at 1695297550136.
Titan Eclipsed by Saturn's Shadow starting at 1695291250136 ending at 1695298270136.
Ganymede Shadow Transit of Jupiter starting at 1695304450135 ending at 1695310810135.
Ganymede Transit of Jupiter starting at 1695320890134 ending at 1695323470134.
Titan Transit of Saturn starting at 1695332170134 ending at 1695338770133.
Titan Shadow Transit of Saturn starting at 1695332470134 ending at 1695339610133.
Io Shadow Transit of Jupiter starting at 1695333790134 ending at 1695341590133.
Io Transit of Jupiter starting at 1695337390133 ending at 1695345070133.

22nd September 2023

Titan Occultation by Saturn starting at 1695372430131 ending at 1695378970131.
Titan Eclipsed by Saturn's Shadow starting at 1695372670131 ending at 1695379750131.
Europa Shadow Transit of Jupiter starting at 1695375790131 ending at 1695384130131.
Europa Transit of Jupiter starting at 1695383110131 ending at 1695391030130.
Mercury Maximum Elongation peaking at 1695388646992. Best seen in the morning.
Lunar X and V clair-obscur effects gradually becoming more visible on the Moon starting at 1695397800000 ending at 1695414000000.
Io Eclipsed by Jupiter's Shadow starting at 1695410650129 ending at 1695418450129.
First Quarter Moon peaking at 1695411141463.
Titan Transit of Saturn starting at 1695413590129 ending at 1695420190128.
Titan Shadow Transit of Saturn starting at 1695413890129 ending at 1695421030128.
Io Occultation by Jupiter starting at 1695414190129 ending at 1695421870128.

23rd September 2023

Titan Occultation by Saturn starting at 1695453850126 ending at 1695460390126.
Titan Eclipsed by Saturn's Shadow starting at 1695454150126 ending at 1695461170126.
Io Shadow Transit of Jupiter starting at 1695486670125 ending at 1695494470124.
Io Transit of Jupiter starting at 1695490210124 ending at 1695497890124.
Titan Transit of Saturn starting at 1695495010124 ending at 1695501610124.
Titan Shadow Transit of Saturn starting at 1695495310124 ending at 1695502450124.

24th September 2023

Lunar Plato’s Hook clair-obscur effect starting at 1695516000000 ending at 1695532200000.
Europa Eclipsed by Jupiter's Shadow starting at 1695527410122 ending at 1695535810122.
Europa Occultation by Jupiter starting at 1695534550122 ending at 1695542530121.
Titan Occultation by Saturn starting at 1695535270122 ending at 1695541810121.
Titan Eclipsed by Saturn's Shadow starting at 1695535570122 ending at 1695542590121.
Io Eclipsed by Jupiter's Shadow starting at 1695563530120 ending at 1695571330119.
Io Occultation by Jupiter starting at 1695567010120 ending at 1695574690119.
Titan Transit of Saturn starting at 1695576430119 ending at 1695582970119.
Titan Shadow Transit of Saturn starting at 1695576730119 ending at 1695583870119.
Moon's northern limb is most exposed in the maximum northern libration peaking at 1695583059913. The descending Lunar Node that enabled this occured on 17th Sep 2023 at 19:17 Universal Time.

25th September 2023

Ganymede Eclipsed by Jupiter's Shadow starting at 1695613510117 ending at 1695619990117.
Titan Occultation by Saturn starting at 1695616690117 ending at 1695623230116.
Titan Eclipsed by Saturn's Shadow starting at 1695616990117 ending at 1695624070116.
Ganymede Occultation by Jupiter starting at 1695628870116 ending at 1695631750116.
Io Shadow Transit of Jupiter starting at 1695639610115 ending at 1695647410115.
Io Transit of Jupiter starting at 1695643030115 ending at 1695650710115.
Titan Transit of Saturn starting at 1695657850114 ending at 1695664390114.
Titan Shadow Transit of Saturn starting at 1695658150114 ending at 1695665350114.
Europa Shadow Transit of Jupiter starting at 1695682870113 ending at 1695691210112.

26th September 2023

Europa Transit of Jupiter starting at 1695689710112 ending at 1695697630112.
Titan Occultation by Saturn starting at 1695698110112 ending at 1695704650112.
Titan Eclipsed by Saturn's Shadow starting at 1695698470112 ending at 1695705490111.
Io Eclipsed by Jupiter's Shadow starting at 1695716470111 ending at 1695724270110.
Io Occultation by Jupiter starting at 1695719770111 ending at 1695727450110.
Titan Transit of Saturn starting at 1695739270109 ending at 1695745810109.
Titan Shadow Transit of Saturn starting at 1695739630109 ending at 1695746770109.

27th September 2023

Meteor Shower. Daytime Sextantids is a bright northern hemisphere meteor shower.
Titan Occultation by Saturn starting at 1695779590107 ending at 1695786070107.
Titan Eclipsed by Saturn's Shadow starting at 1695779890107 ending at 1695786970107.
Io Shadow Transit of Jupiter starting at 1695792490106 ending at 1695800290106.
Io Transit of Jupiter starting at 1695795790106 ending at 1695803470106.
Titan Transit of Saturn starting at 1695820690105 ending at 1695827230104.
Titan Shadow Transit of Saturn starting at 1695821050105 ending at 1695828190104.
Europa Eclipsed by Jupiter's Shadow starting at 1695834490104 ending at 1695842890103.
Europa Occultation by Jupiter starting at 1695841150103 ending at 1695849070103.

28th September 2023

Titan Occultation by Saturn starting at 1695861010102 ending at 1695867490102.
Titan Eclipsed by Saturn's Shadow starting at 1695861370102 ending at 1695868390102.
Io Eclipsed by Jupiter's Shadow starting at 1695869350102 ending at 1695877150101.
Io Occultation by Jupiter starting at 1695872590102 ending at 1695880270101.
Titan Transit of Saturn starting at 1695902110100 ending at 1695908590099.
Titan Shadow Transit of Saturn starting at 1695902470100 ending at 1695909610099.
Ganymede Shadow Transit of Jupiter starting at 1695923710098 ending at 1695930010098.
Ganymede Transit of Jupiter starting at 1695938230098 ending at 1695940690097.
Titan Occultation by Saturn starting at 1695942430097 ending at 1695948910097.
Titan Eclipsed by Saturn's Shadow starting at 1695942790097 ending at 1695949810097.
Io Shadow Transit of Jupiter starting at 1695945430097 ending at 1695953230097.

29th September 2023

Io Transit of Jupiter starting at 1695948610097 ending at 1695956290097.
Full Moon peaking at 1695981482609.
Titan Transit of Saturn starting at 1695983530095 ending at 1695990010095.
Titan Shadow Transit of Saturn starting at 1695983890095 ending at 1695991030094.
Europa Shadow Transit of Jupiter starting at 1695989950095 ending at 1695998290094.
Europa Transit of Jupiter starting at 1695996250094 ending at 1696004170094.
Io Eclipsed by Jupiter's Shadow starting at 1696022290093 ending at 1696030090092.
Titan Occultation by Saturn starting at 1696023850092 ending at 1696030330092.
Titan Eclipsed by Saturn's Shadow starting at 1696024210092 ending at 1696031290092.
Io Occultation by Jupiter starting at 1696025350092 ending at 1696033030092.

30th September 2023

Titan Transit of Saturn starting at 1696064950090 ending at 1696071430090.
Titan Shadow Transit of Saturn starting at 1696065310090 ending at 1696072450090.
Io Shadow Transit of Jupiter starting at 1696098310088 ending at 1696106110088.
Io Transit of Jupiter starting at 1696101370088 ending at 1696109050087.
Titan Occultation by Saturn starting at 1696105330088 ending at 1696111750087.
Titan Eclipsed by Saturn's Shadow starting at 1696105690088 ending at 1696112710087.

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