{"id":3999,"date":"2023-04-21T21:26:33","date_gmt":"2023-04-21T19:26:33","guid":{"rendered":"http:\/\/robinfo.oma.be\/?p=3999"},"modified":"2025-02-24T16:48:38","modified_gmt":"2025-02-24T15:48:38","slug":"mai-2023-dans-le-ciel","status":"publish","type":"post","link":"https:\/\/robinfo.oma.be\/fr\/mai-2023-dans-le-ciel\/","title":{"rendered":"Mai 2023 (Dans le ciel )"},"content":{"rendered":"

AVIS IMPORTANT : Pour obtenir l\u2019heure officielle, ajouter DEUX heures aux heures indiqu\u00e9es ci-dessous (en Temps Universel UT pour Uccle)<\/i><\/span><\/span><\/p>\n

Ph\u00e9nom\u00e8nes c\u00e9lestes int\u00e9ressants<\/h3>\n

1 <\/b><\/span><\/span><\/span>Mercure en conjonction inf\u00e9rieure avec le Soleil \u00e0 23 h<\/span><\/span><\/span> <\/b><\/p>\n

2 <\/b><\/span><\/span><\/span>La plan\u00e8te naine (134340) Pluton stationnaire \u00e0 23 h<\/span><\/span><\/span><\/p>\n

4 <\/b><\/span><\/span><\/span> La Lune en conjonction \u00e0 2 \u00b0 avec l\u2019\u00e9toile Spica [Alpha Vir (+1,2)] vers 3 h 45 m<\/span><\/span><\/span><\/p>\n

5 <\/b><\/span><\/span><\/span>Eclipse de Lune par la p\u00e9nombre, (th\u00e9oriquement) en partie visible en Belgique, de 15 h 12 m \u00e0 19 h 34 m [Lever de Lune\u00a0\u00e0 <\/span><\/span><\/span>Uccle<\/i><\/span><\/span><\/span> : 19 h 20,5 m \u2013 Sorite de la p\u00e9nombre\u00a0: 19 h 33,8 m (h = + 2 \u00b0)]<\/span><\/span><\/span><\/p>\n

Pleine Lune<\/b><\/span><\/span><\/span> \u00e0 17 h 34 m<\/span><\/span><\/span> <\/i><\/p>\n

8 <\/b><\/span><\/span><\/span>La com\u00e8te C\/2020 V2 (ZTF) en passage au p\u00e9rih\u00e9lie \u00e0 2,228 unit\u00e9s astronomiques (ua) soit 333,3 millions de kilom\u00e8tres (non observable)<\/span><\/span><\/span><\/p>\n

9 <\/b><\/span><\/span><\/span>Uranus en conjonction avec le Soleil \u00e0 20 h<\/span><\/span><\/span><\/p>\n

10 <\/b><\/span><\/span><\/span>Mars (+1,4) \u00e0 5 \u00b0 S de l\u2019\u00e9toile Pollux [B\u00eata Gem (+1,2)] \u00e0 20 h<\/span><\/span><\/span><\/p>\n

11<\/b><\/span><\/span><\/span> La Lune au p\u00e9rig\u00e9e (\u00e0 369\u00a0345 km de la Terre \u2013 Diam\u00e8tre apparent\u00a0: 32\u2019 22\u201d) \u00e0 5 h<\/span><\/span><\/span><\/p>\n

12<\/b><\/span><\/span><\/span> Dernier Quartier<\/b><\/span><\/span><\/span> de Lune \u00e0 14 h 28 m<\/span><\/span><\/span><\/p>\n

Ce soir, la plan\u00e8te naine (1) C\u00e9r\u00e8s (+7,8) \u00e0 2 \u00b0 E de l\u2019\u00e9toile (double) Denebola [B\u00eata Leo (+2,14)]<\/span><\/span><\/span><\/p>\n

13<\/b><\/span><\/span><\/span> Mince croissant de Lune \u00e0 8 \u00b0 au nord-est de Saturne (+1,0) au-dessus de l\u2019horizon sud-est \u00e0 2 h<\/span><\/span><\/span><\/p>\n

La plan\u00e8te naine (1) C\u00e9r\u00e8s (+7,8) stationnaire<\/span><\/span><\/span><\/p>\n

14<\/b><\/span><\/span><\/span> Mince croissant de Lune \u00e0 8 \u00b0 au nord de Saturne (+1,0) bas au-dessus de l\u2019horizon sud-est \u00e0 3 h<\/span><\/span><\/span><\/p>\n

Mercure stationnaire \u00e0 7 h<\/span><\/span><\/span><\/p>\n

15<\/b><\/span><\/span><\/span> La Lune \u00e0 2 \u00b0 au sud de Neptune (+7,9) \u00e0 1 h<\/span><\/span><\/span><\/p>\n

18 <\/b><\/span><\/span><\/span>La Lune \u00e0 4 \u00b0 au nord de Mercure (+1,8) \u00e0 2 h<\/span><\/span><\/span><\/p>\n

19 Nouvelle Lune<\/b><\/span><\/span><\/span> \u00e0 15 h 53 m<\/span><\/span><\/span><\/p>\n

20<\/b><\/span><\/span><\/span> Mince croissant de Lune bas au-dessus de l\u2019horizon nord-ouest vers 20 h 30 m, 28 heures apr\u00e8s l\u2019instant de la Nouvelle Lune (A Uccle, coucher du Soleil \u00e0 19 h 32 m et coucher de Lune \u00e0 21 h 03 m)<\/span><\/span><\/span><\/p>\n

21<\/b><\/span><\/span><\/span> Le <\/span><\/span><\/span>Soleil<\/b><\/span><\/span><\/span> entre dans le <\/span><\/span><\/span>signe<\/i><\/span><\/span><\/span> des G\u00e9meaux \u00e0 07 h 09 m alors qu\u2019il est pass\u00e9 de la <\/span><\/span><\/span>constellation<\/i><\/span><\/span><\/span> du B\u00e9lier dans laquelle il se trouvait depuis le 19 avril dans la <\/span><\/span><\/span>constellation<\/i><\/span><\/span><\/span> du Taureau le 14 mai<\/span><\/span><\/span><\/p>\n

23 <\/b><\/span><\/span><\/span>Beau regroupement de la Lune et de V\u00e9nus (-4,2) en dessous des \u00e9toiles Castor [Alpha Gem (+1,6)] et Pollux [B\u00eata Gem (+1,2)] et de Mars (+1,5) vers 20 h 30 m<\/span><\/span><\/span><\/p>\n

24<\/b><\/span><\/span><\/span> Conjonction \u2013 de jour \u2013 de la Lune avec Mars (+1,5) vers 18 h 30 m<\/span><\/span><\/span><\/p>\n

26<\/b><\/span><\/span><\/span> La Lune \u00e0 l\u2019apog\u00e9e (\u00e0 404\u00a0510 km de la Terre \u2013 Diam\u00e8tre apparent\u00a0: 29\u201932\u201d) \u00e0 2 h<\/span><\/span><\/span><\/p>\n

27<\/b><\/span><\/span><\/span> La Lune en conjonction \u00e0 3,5 \u00b0 au nord de l\u2019\u00e9toile R\u00e9gulus [Alpha L\u00e9o (+1,3)] \u00e0 1 h 30 m <\/span><\/span><\/span>Premier Quartier<\/b><\/span><\/span><\/span> de Lune \u00e0 15 h 22 m<\/span><\/span><\/span><\/p>\n

29<\/b><\/span><\/span><\/span> Mercure (+0,5) en plus grande \u00e9longation (25 \u00b0 W) \u00e0 6 h (<\/span><\/span><\/span>Difficile \u00e0 observer\u00a0!<\/i><\/span><\/span><\/span> )<\/span><\/span><\/span><\/p>\n

30<\/b><\/span><\/span><\/span> Dans des conditions d\u2019observation difficiles\u00a0: peu avant le coucher de la Lune \u2013 \u00e0 Uccle\u00a0: 1 h 37 m \u2013 disparition au bord sombre de la Lune de l\u2019\u00e9toile 15 \u03b7 Vir (+3,9) vers 1 h 07 m (\u00e0 une hauteur de 4 \u00b0\u00a0! )<\/span><\/span><\/span><\/p>\n

Visibilit\u00e9 des plan\u00e8tes<\/h3>\n

Visibles \u00e0 l\u2019\u0153il nu\u00a0: <\/b><\/span><\/span><\/span>V\u00e9nus, Mars, Saturne<\/span><\/span><\/span><\/p>\n

Difficiles \u00e0 observer\u00a0: <\/b><\/span><\/span><\/span>Uranus, Neptune<\/span><\/span><\/span><\/p>\n

Inobservables\u00a0: <\/b><\/span><\/span><\/span>Mercure, Jupiter, Uranus, Neptune<\/span><\/span><\/span><\/p>\n

Mercure <\/b><\/span><\/span><\/span>(+5,7\/+0,4), dans la constellation du B\u00e9lier, passe au m\u00e9ridien le 1 \u00e0 11 h 42 m, le 15 \u00e0 10\u00a0h 29 m et le 31 \u00e0 10\u00a0h 03\u00a0m, d\u00e8s lors pratiquement non observable <\/span><\/span><\/span><\/p>\n

V\u00e9nus<\/b><\/span><\/span><\/span> (-4,1\/-4,3), le soir et jusqu\u2019apr\u00e8s minuit successivement dans les constellations du Taureau puis des G\u00e9meaux, se couche le 1 \u00e0 23 h 06\u00a0m, le 15 \u00e0 23\u00a0h 20\u00a0m et le 31 \u00e0 23 h 13 m <\/span><\/span><\/span><\/p>\n

Mars <\/b><\/span><\/span><\/span>(+1,3\/+1,6), avant et apr\u00e8s minuit successivement dans les constellations des G\u00e9meaux puis du Cancer, se couche le 1 \u00e0 0\u00a0h 47 m, le 15 \u00e0 0 h 15 m et le 31 \u00e0 23\u00a0h 34\u00a0m <\/span><\/span><\/span><\/p>\n

Jupiter <\/b><\/span><\/span><\/span>(-2,1\/-2,1), \u00e0 l\u2019exception de la toute fin du mois peut-\u00eatre bas au-dessus de l\u2019horizon sud-est dans le cr\u00e9puscule du matin, passe au m\u00e9ridien le 1 \u00e0 10 h 47 m, le 15 \u00e0 10\u00a0h 03\u00a0m et le 31 \u00e0 9 h 14 m, d\u00e8s lors pratiquement non observable <\/span><\/span><\/span><\/p>\n

Saturne<\/b><\/span><\/span><\/span> (+1,0\/+0,9), le matin dans la constellation du Verseau, se l\u00e8ve le 1 \u00e0 2\u00a0h 28\u00a0m, le 15 \u00e0 1 h 36 m et le 31 \u00e0 0 h 34 m <\/span><\/span><\/span><\/p>\n

Uranus <\/b><\/span><\/span><\/span>(+5,9\/+5,8) passe au m\u00e9ridien le 1 \u00e0 12 h 09 m, le 15 \u00e0 11 h 19 m et le 31 \u00e0 10 h 21 m, d\u00e8s lors pratiquement non observable <\/span><\/span><\/span><\/p>\n

Neptune <\/b><\/span><\/span><\/span>(+7,9\/+7,9) passe au m\u00e9ridien le 1 \u00e0 8 h 55 m, le 15 \u00e0 8\u00a0h 03\u00a0m et le 31 \u00e0 7 h 02\u00a0m, d\u00e8s lors pratiquement non observable <\/span><\/span><\/span><\/p>\n

Pour en savoir plus :<\/i><\/strong>
\nAnnuaire 2023 de l\u2019Observatoire royal de Belgique<\/a> (En vente \u00e0 l\u2019Observatoire : EUR 13,00)<\/i>
\nEph\u00e9m\u00e9rides du mois dans la revue Ciel et Terre<\/i> de la Soci\u00e9t\u00e9 Royale belge d\u2019Astronomie, de M\u00e9t\u00e9orologie et de Physique du Globe SRBA (www.srba.be<\/a>)<\/i><\/p>\n","protected":false},"excerpt":{"rendered":"

AVIS IMPORTANT : Pour obtenir l\u2019heure officielle, ajouter DEUX heures aux heures indiqu\u00e9es ci-dessous (en Temps Universel UT pour Uccle) Ph\u00e9nom\u00e8nes c\u00e9lestes int\u00e9ressants 1 Mercure en conjonction inf\u00e9rieure avec le Soleil \u00e0 23 h 2 La plan\u00e8te naine (134340) Pluton stationnaire \u00e0 23 h 4 La Lune en conjonction \u00e0 2 \u00b0 avec l\u2019\u00e9toile Spica […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[51],"tags":[],"featured_image_src":{"landsacpe":false,"list":false,"medium":false,"full":false},"_links":{"self":[{"href":"https:\/\/robinfo.oma.be\/fr\/wp-json\/wp\/v2\/posts\/3999"}],"collection":[{"href":"https:\/\/robinfo.oma.be\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/robinfo.oma.be\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/robinfo.oma.be\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/robinfo.oma.be\/fr\/wp-json\/wp\/v2\/comments?post=3999"}],"version-history":[{"count":2,"href":"https:\/\/robinfo.oma.be\/fr\/wp-json\/wp\/v2\/posts\/3999\/revisions"}],"predecessor-version":[{"id":4004,"href":"https:\/\/robinfo.oma.be\/fr\/wp-json\/wp\/v2\/posts\/3999\/revisions\/4004"}],"wp:attachment":[{"href":"https:\/\/robinfo.oma.be\/fr\/wp-json\/wp\/v2\/media?parent=3999"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/robinfo.oma.be\/fr\/wp-json\/wp\/v2\/categories?post=3999"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/robinfo.oma.be\/fr\/wp-json\/wp\/v2\/tags?post=3999"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}