OftenWrong Posted February 25, 2021 Report Posted February 25, 2021 13 minutes ago, DogOnPorch said: Celestia attempt to display Sagittarius A*...it's one of those OMG, it's full of stars things up close. Doubt one could get a good night's sleep near the core...mind the X-Rays. I read something new about Cygnus X-1 just the other day: Quote One of the biggest and first known black holes in the Milky Way galaxy is more massive than astronomers thought, a team of scientists announced on Thursday. The finding throws a wrench into long-held models of how massive stars evolve on the way to the ultimate doom. Famous Black Hole Gets a Massive Update 1
DogOnPorch Posted February 25, 2021 Author Report Posted February 25, 2021 On 2/18/2021 at 8:34 PM, OftenWrong said: I am a Venusian observer, whatever that means. 1 Nothing cracks a turtle like Leon Uris.
DogOnPorch Posted February 25, 2021 Author Report Posted February 25, 2021 (edited) 15 minutes ago, OftenWrong said: I read something new about Cygnus X-1 just the other day: Famous Black Hole Gets a Massive Update That's interesting. The twenty Solar mass limit for collapsed stars ---> black hole seemed like one of those rules that was bound to be broken. Good looking black holes in Celestia... Cygnux X-1 in Celestia http://celestiamotherlode.net/catalog/fictional.html#1800 Edited February 25, 2021 by DogOnPorch Nothing cracks a turtle like Leon Uris.
DogOnPorch Posted February 25, 2021 Author Report Posted February 25, 2021 A Celestia aside.... If you get the large star database and what-not...you can drift along Star Trek-like at about 1 ly per second and watch the stars streak by. Even at a blinding speed like that, if you turn and lock onto M31 or something similar, you get a sobering reality check as to HOW far 2,000,000 light years away is...two million seconds in this case. Over 500 hours... 1 Nothing cracks a turtle like Leon Uris.
DogOnPorch Posted March 19, 2021 Author Report Posted March 19, 2021 The LRO and Apollo sites. 1 Nothing cracks a turtle like Leon Uris.
DogOnPorch Posted April 16, 2021 Author Report Posted April 16, 2021 Scott Manley on NASA's tracking ships and their colourful history. Nothing cracks a turtle like Leon Uris.
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