(Q5174610)
Statements
CCDM J21001+0731AB
UBV M 25342
WEB 18864
159 kilometre per second
145 kilometre per second
−20.0 kilometre per second
−26.20 kilometre per second
−20 kilometre per second
−15.0 kilometre per second
−20±5 kilometre per second
A7V
5.424±0.024
5.286±0.021
7,311 kelvin