Questions tagged [conjunction]
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What is Mercury and Venus’ apparent retrograde motion?
I was having a discussion about Mercury being in retrograde, and I had explained it as Earth moving faster tangentially than Mercury so it looks like it’s moving backwards when we compare it with the ...
Are asteroids 2012 PM35 and 2020 OG106 aliases?
As a sequel to my asteroid's conjunctions search, I found those two bodies having very similar Kepler orbital elements and being so extremely close that they might be duplicates in JPL's database. <...
Will there be a five planet conjunction in March, 2022?
"Five stars rise in the East" arm protector is a Chinese relic. This article says that "researchers from the Japanese observatory said the next alignment of the five planets to the east ...
Why are triple conjunctions in a resonance forbidden?
I was reading the Wikipedia article about orbital resonance and noticed that Laplace resonances forbid triple conjunctions. This seems to be supported by the Io-Europa-Ganymede system and the Nyx-Styx-...
If we stood on the surface of a Jovian moon, Saturn would appear as a dot. Why doesn't Saturn appear like this in a telescope?
Images from the conjunction like these show Saturn just a bit smaller than Jupiter. However, if you were in the vicinity of Jupiter, Saturn would still appear as a dot to the naked eye, wouldn't it? ...
Why do astrologers use the “wrong” sign?
I realize this may be the wrong site for this question... I apologize if you consider it inappropriate but hope this community knows the answer. We just experienced the spectacular conjunction of ...
When was the last Great Conjunction on Winter Solstice? [duplicate]
The Wikipedia Great Conjunction page only lists the years 1206-2398 and in those 1192 years there is no Great Conjunction landing on the Winter Solstice. When was the last Winter Solstice Great ...
Are the Jupiter-Saturn conjunctions and winter solstice related?
There is conjunction of Jupiter and Saturn on Dec 21. And there is another celestial event on that day the winter solstice. So I'm just wondering that are these two events are related or not?
After what time interval do the closest approaches of Mercury to the Earth repeat?
The sidereal period of Mercury's revolution is 88 days and the synodic period — 116d. my solution, but in the question featured "the greatest rapprochement." And this is no longer so easy. ...
When was the last time a great conjunction coincided with a solstice?
This December, a great conjunction will occur nine hours after winter solstice, which means that for much of the world the two events will be on the same day. When was the last time a great ...
First visibility of the moon
I am new here, and hope to state the question well. In Islam, it's known that the Lunar Month starts if the Moon is sighted after the sunset of the 29th day of that month. If someone claimed that ...
Is it correct to say vertical conjunction?
This question is related to this one: Are we seeing a conjunction these mornings? Last Feb 27, the a reporter said that, the day before, at sunset, Venus and the Moon were in vertical conjunction. Is ...
Are we seeing a conjunction these mornings?
I have a doubt about planetary conjunction. These days, we can see Saturn, Mars, Jupiter and the Moon close to each other. I mean if Saturn, Mars, Jupiter and the Moon were in conjunction with each ...
Finding Quintuple Planetary Alignments with SkyField
I am working on a python script that will use the SkyField and SciPy libraries to find quintuple planetary conjunctions and their corresponding constellation location. Specifically I am looking for ...
Venus' magnitude during inferior conjunction
I was doing an assignment on Stellarium when I observed Venus to have an apparent magnitude that didn't become less negative than -3, even at inferior conjunctions when we faced the dark side of Venus....
Venus-Saturn conjunction in Sagittarius on Dec 11, 2019 - How often does this happen?
Venus and Saturn will be approximately two finger widths apart in the constellation Sagittarius on December 11, 2019. I was wondering: how often do Venus and Saturn come together in the sky like this? ...