Gaia DR3 1740097341320384000

All names: GALEX J212128.1+072417, USNO-A2.0 0900-19555492, Gaia DR2 1740097341320384000, Gaia DR3 1740097341320384000

Parameter Unit Vincent et al. 2024 Simbad
Right ascension 21 21 28.21 21 21 28.17 (0.1)
Declination 07 24 17.40 07 24 16.72 (0.1)
Spectral type DC: DC
Effective temperature [K] 8174.0 (119)
log(g) [cgs] 7.45 (0.03)
Mass [M☉] 0.31 (0.02)
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 8.69 8.69 (0.1)
Distance [pc] 115.11 115.11 (2)
Composition
Proper motion (right ascension) [mas/yr] 35.296 (0.1)
Proper motion (declination) [mas/yr] 42.317 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.60 (0.3)
V magnitude
R magnitude 17.70 (0.3)
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 17.59 17.59 (0.003)
BP magnitude
RP magnitude
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V)

* Constant surface field

Special notes:

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Absorption lines

Photometric filters

BVRI
ugriz

Photometric fit




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.