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Yesterday, 06:16 PM

Centaur replied to a thread Planet Uranus easy to find on Jan 20th, says NASA in Astronomy

:rofl:

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5 replies | 64 view(s)
2021-Jan-11, 10:07 PM

Centaur started a thread Asteroid 15 Eunomia Opposes Sun 2021 JAN 21 in Astronomy

Asteroid 15 Eunomia is currently the second brightest asteroid at magnitude +8.6. Eunomia will appear within Cancer in opposition to the Sun on 2021...

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0 replies | 58 view(s)
2021-Jan-06, 06:33 PM

Centaur started a thread Trio: Mercury, Jupiter & Saturn - 2021 JAN 09-10 in Astronomy

Mercury, Jupiter & Saturn will form a tight trio in the early evening southwestern sky during the weekend of 2021 JAN 09-10. Photos and...

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0 replies | 56 view(s)
2021-Jan-04, 02:12 AM

Centaur started a thread Mercury as a Winter Evening Star in Astronomy

Elusive Mercury has commenced its apparition in the western sky after sunset following its superior conjunction behind the Sun on 2020 DEC 19. This...

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0 replies | 42 view(s)
2021-Jan-01, 11:30 PM

Centaur started a thread Mutual Events - Jupiter's 4 Galilean Satellites in Astronomy

During periods of about six months separated by about six years, mutual events occur involving the Galilean satellites occulting and transiting each...

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0 replies | 46 view(s)
2021-Jan-01, 07:15 PM

Centaur started a thread Quadrantid Meteor Shower Peaks 2021 JAN 02-03 in Astronomy

The annual Quadrantid Meteor Shower may already be underway, and is expected to peak during the night of 2021 JAN 02-03. Its radiant is in the no...

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0 replies | 36 view(s)
2020-Dec-25, 07:31 PM

Centaur replied to a thread Great Conjunction - Jupiter & Saturn - 2020 DEC 21 in Astronomy

Two planets' ecliptical nodes do not have to be conjunct for a mutual planetary occultation to be observed from Earth. That would only be true for...

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45 replies | 1417 view(s)
2020-Dec-24, 06:34 PM

Centaur replied to a thread Great Conjunction - Jupiter & Saturn - 2020 DEC 21 in Astronomy

As Hornblower and profloater noted, the answer is, "Yes, it's a huge factor." An additional reason would be the small angular sizes of the planets...

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45 replies | 1417 view(s)
2020-Dec-21, 06:13 PM

Centaur replied to a thread Great Conjunction - Jupiter & Saturn - 2020 DEC 21 in Astronomy

Indeed, the current axial tilt for Saturn relative to Earth is about 21˚, with an identical effect for its equatorial circling rings. The current...

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45 replies | 1417 view(s)

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