Timeline for What could make a star green?
Current License: CC BY-SA 4.0
13 events
| when toggle format | what | by | license | comment | |
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| Feb 7 at 13:36 | comment | added | Gray Sheep | Ext: It is absolutely not trivial, it is the consequence of complex transformations of large formulas. For example, this is the reason, why the originally about 10000C hot cosmic radiation looks today only 2.7K, but also heat radiation. Funny thing is that if a body is coming or distanting from you quickly, it looks warmer or colder, but only its light is not enough to say, maybe it is a distanting body or a colder one. | |
| Feb 7 at 9:08 | comment | added | Gray Sheep | Very nice idea. Funny thing is that the spectra of the stars works so that their doppler makes them cooler or hotter, but also star spectra. | |
| Nov 14, 2019 at 22:23 | history | edited | overlord | CC BY-SA 4.0 |
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| Dec 14, 2016 at 6:34 | comment | added | JDługosz | So delete it. I think yiu even get a badge for retracting an answer with a positive score. | |
| Dec 14, 2016 at 5:31 | comment | added | d--b | @kpm: yeah, I realized that after posting... | |
| Dec 14, 2016 at 4:09 | comment | added | KPM | Plus, if you redshift a blue star, it will appear white, not green. That's because the redshift applies to the whole spectrum so when the blue in it becomes green, the ultraviolet becomes blue and the white becomes red. This resulting in a white blend to the eye. | |
| Dec 13, 2016 at 22:35 | comment | added | Paŭlo Ebermann | Red-shifting a (black-body) blue star just makes it white again (and then red), no green in between. Same for blue-shifting a (black-body) red star. | |
| Dec 13, 2016 at 22:03 | review | Low quality posts | |||
| Dec 14, 2016 at 0:59 | |||||
| Dec 13, 2016 at 20:27 | comment | added | SRM | Nothing looks the same color from all viewpoints. That's the point of relativity. Red stars blue shift when viewed from some views. | |
| Dec 13, 2016 at 17:13 | comment | added | Zxyrra | @AndrewRecard not necessarily but the idea is that it looks green when observed at nearly any place - this would still look blue up close. | |
| Dec 13, 2016 at 15:48 | comment | added | Andrew Recard | I think the questioner is implying that the star has a habitable planet orbiting it. | |
| Dec 13, 2016 at 15:41 | review | First posts | |||
| Dec 13, 2016 at 15:45 | |||||
| Dec 13, 2016 at 15:37 | history | answered | d--b | CC BY-SA 3.0 |