SDSS J072118.45+132148.3

All names: Gaia DR3 3166281402788400384, SDSSJ072118.45+132148.3, SDSS J072118.45+132148.3, LAMOST J072118.45+132148.3, Gaia DR2 3166281402788400384, GALEX J072118.4+132148

Parameter Unit Geier 2020 Stilism Simbad
Right ascension 07 21 18.45 07 21 18.45 (0.08)
Declination 13 21 48.34 13 21 48.34 (0.07)
Spectral type sdB sdB/sdO
Effective temperature [K] 31862.0 (232)
log(g) [cgs] 6.05 (0.05)
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 0.24 (0.1) 0.32 (0.09)
Distance [pc] 4113.53 (2058) 3127.93 (906)
Composition
Proper motion (right ascension) [mas/yr] -1.576 (0.2) -1.678 (0.1)
Proper motion (declination) [mas/yr] -0.193 (0.2) -0.028 (0.08)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.24 (0.008) 17.25 (0.008)
g magnitude 17.25 (0.005) 17.25 (0.005)
r magnitude 17.61 (0.006) 17.61 (0.006)
i magnitude 17.87 (0.008) 17.87 (0.008)
z magnitude 18.14 (0.02) 18.13 (0.02)
G magnitude 17.47 (0.002) 17.43 (0.003)
BP magnitude 17.33 (0.01)
RP magnitude 17.56 (0.01)
Pan g magnitude 17.33 (0.004)
Pan r magnitude 17.62 (0.002)
Pan i magnitude 17.89 (0.004)
Pan z magnitude 18.13 (0.009)
Pan y magnitude 18.25 (0.02)
E(B-V) 0.070

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.