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I am a hobby astronomer and usually out with people that aren't familiar with the night sky. In order to help them find constellations or show them stuff in...
Asked on 09/28/2021 by MegAmaNeo1
1 answerI have a bunch of orbital elements (inclination, longitude of the ascending node, mean anomaly, argument of periapsis) that are all referenced from an equatorial reference frame. But the program...
Asked on 09/28/2021 by Geroditus
1 answerI'm in the middle of collecting infrared data of various wavelengths. My problem is the following: SPIRE data (250µm) are in MJy/sr and PACS data (100µm) are in Jy/pixel. I...
Asked on 09/28/2021 by Thomas LIZEE
1 answerIf nearly any crater on the far side of the moon will work, and not just equatorial craters, then we could pick craters near the possible future Artemis base at...
Asked on 09/28/2021 by Brooks Nelson
2 answerThe BBC's Desert telescope takes aim at ageing our Universe contains the image below of the Cosmic Microwave Background from the ...
Asked on 09/28/2021
2 answerI've been reading the book Planetary Geology. In chapter 7, section 7.6, the author states thatThe angle of incidence at which asteroids or comets encounter the surface...
Asked on 09/28/2021
1 answerWhat is the correlation between stellar abundance by mass and by number? Let’s take the Sun and Helium for example. This paper mentions an abundance by mass...
Asked on 09/28/2021 by AstroNewbie
1 answerI'm trying to calculate the Julian Day, given a UTC year, month and date in the Gregorian calendar. I tried using the formula on Wikipedia, but that...
Asked on 09/28/2021 by vcapra1
3 answerNASA/ESA Solar Orbiter mission just released its first images. They show an ubiquitous feature: miniature flares called "campfires", much smaller than solar flares. ...
Asked on 09/28/2021 by Jean-Marie Prival
1 answerMy son received a secondhand telescope for his birthday. It is a Celestron Powerseeker 114AZ. I found these three black cap-like pieces separate from other parts. I can’t find what...
Asked on 09/28/2021
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