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There are two very similar galaxies here. I've heard of a gravity lens making a star look like it's two. Is it possible a gravity lens is making a galaxy look l
by kangnkodos 6y ago
There are two very similar galaxies here.
I've heard of a gravity lens making a star look like it's two.
Is it possible a gravity lens is making a galaxy look like two?
https://viewer.legacysurvey.org/?ra=211.0715&dec=81.6327&layer=ls-dr9&zoom=13 https://viewer.legacysurvey.org/?ra=211.0715&dec=81.6327&lay...
- kangnkodos 6y agoIf you select Overlays, Bright Objects, Tycho-2 stars, they get labelled as Tycho-2 4564-935-1 and Tycho-2 4564-1031-1. So I guess they are stars?
- sega_sai 6y agoThese are bright stars so they are in Tycho catalogue (which is a catalog of 2.5 million brightest stars)
- SiempreViernes 6y agoThose look like two saturated stars, so not actually galaxies. But in general yes, gravitational lenses can create multiples images of a galaxy, here is an example of four images ( pretty rare, not of galaxies though) https://www.space.com/28744-cosmic-lens-4-supernova-views-photo.html https://www.space.com/28744-cosmic-lens-4-supernova-views-ph...
- sega_sai 6y agoThose are saturated stars. When the stars are too bright the charge tend do spread along the detector producing those lines