symaski62
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6 mag
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https://www.spaceweather.com/archive.php?view=1&day=02&month=06&year=2020
INFERIOR CONJUNCTION OF VENUS: Tomorrow, June 3rd, Venus will pass almost directly between the Earth and the sun. This is having a strange effect on the planet's shape. "It is like a ring of fire," says Didier Favre, who sends this picture from Brétigny-sur-Orge, France:
https://spaceweathergallery.com/indiv_upload.php?upload_id=163013
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http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=Nova+Del+2013&submit=SIMBAD+search
confirmés variable (V)
Gaia DR2 1817026669528976768
Parallaxes (mas) : 0.3814
phot_g_mean_mag : 13.8218 mag
phot_bp_mean_mag : 13.7600 mag
phot_rp_mean_mag : 13.5303 mag
teff_val : 8299.67 K
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C/2019 U6 (Lemmon) 7 magnitude ( aujourd’hui )
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baisse 8 magnitude
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vénus -4.2 magnitude
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mise à jour 7.4 magnitude possible ?
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https://arxiv.org/abs/2005.08881
On 28th January 2018, the large Trans-Neptunian Object (TNO) 2002TC302
The resulting ellipse has major and minor axes of 543 ± 18 km and 460 ± 11 km
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jusque que 24 mai mini 6 magnitude
partir 24 mai à 21 juin, 6 à 8 magnitude
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La société SpaceX a mis en ligne un petit simulateur gratuit utilisant la même interface que celle dont se servent les astronautes pour arrimer le Dragon 2 à la station spatiale internationale. (3D)
Dites-nous si vous y arrivez : https://iss-sim.spacex.com
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oh no ! ne baisse pas ! 8 mag !
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possible ?!
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ne baisse pas ...
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https://arxiv.org/abs/2005.02541
A naked-eye triple system with a nonaccreting black hole in the inner binary
HR 6819
The radial-velocity semi-amplitude of 61.3 km/s of the inner star and its minimum (probable) mass of 5.0 Msun (6.3 +- 0.7 Msun) imply a mass of the unseen object of >= 4.2 Msun (>= 5.0 +- 0.4 Msun), that is, a black hole (BH).
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mise à jour 0.4 mag coucher betelgeuse
prochaine lever betelgeuse
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Nouvelle comète ! C/2020 F3
dans Astronomie générale
Posté(e)
https://www.spaceweather.com/archive.php?view=1&day=24&month=06&year=2020
C/2020 F3