WD 1722+602A

Other names: SDSS J172330.08+601504.9

Parameter Unit SDSS DR12 Simbad Kleinman et al. 2013
Right ascension 17 23 30.07 17 23 30.08 17 23 30.08
Declination 60 15 04.86 60 15 04.85 60 15 04.89
Spectral type DB DB
Effective temperature [K] 16711
log(g) [cgs] 7.78
Mass [M] 0.48
log(Luminosity) [L]
Age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
Parallax [mas]
Distance [pc]
Composition
Proper motion (right ascension) [mas/yr] -8.0
Proper motion (declination) [mas/yr] 15.0
Variability
Magnetic
Has a disc
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.55 19.55 19.53
g magnitude 19.64 19.65 19.66
r magnitude 19.92 19.93 19.94
i magnitude 20.17 20.18 20.21
z magnitude 20.34 20.17 20.14

Spectra

Absorption lines

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