SDSS J081556.54+000420.5

All names: SDSS J081556.54+000420.4, GALEX J081556.7+000419, Gaia EDR3 3077461234292905728, SDSS J081556.55+000420.4, 2SLAQ J081556.55+000420.4, Gaia DR2 3077461234292905728, SDSS J081556.54+000420.5, Gaia DR3 3077461234292905728

Parameter Unit Gaia EDR3 Stilism Simbad Vincent et al. 2023
Right ascension 08 15 56.53 (0.3) 08 15 56.55 (0.3)
Declination 00 04 20.52 (0.2) 00 04 20.50 (0.2)
Spectral type DA DA
Effective temperature [K]
log(g) [cgs]
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 5.16 (0.5) 5.16 (0.5)
Distance [pc] 193.75 (19) 193.75 (19)
Composition
Proper motion (right ascension) [mas/yr] -12.168 (0.4) -12.168 (0.4)
Proper motion (declination) [mas/yr] 1.471 (0.3) 1.471 (0.3)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.10 (0.04)
g magnitude 19.60 (0.01)
r magnitude 19.53 (0.01)
i magnitude 19.52 (0.02)
z magnitude 19.48 (0.08)
G magnitude 19.49 (0.005) 19.49 (0.005)
BP magnitude 19.67 (0.04)
RP magnitude 19.34 (0.07)
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.015

* Constant surface field

Special notes:

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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.