SDSS J075430.44+300720.4

All names: Gaia EDR3 877445192756064512, Gaia DR3 877445192756064512, SDSS J075430.44+300720.4, SDSS J075430.44+300720.42, Gaia DR2 877445192756064512

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Gaia DR2 Kepler et al. 2016 Simbad
Right ascension 07 54 30.44 (0.4) 07 54 30.44 07 54 30.44 (0.5) 07 54 30.44 (0.4)
Declination 30 07 20.33 (0.3) 30 07 20.41 30 07 20.33 (0.3) 30 07 20.38 (0.3)
Spectral type sdA sdA
Effective temperature [K] 7703.0 (58)
log(g) [cgs] 5.92 (0.2)
Mass [M☉] 0.15166 (0.0008)
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] -0.04 (0.6) -0.14 (0.8)
Distance [pc]
Composition
Proper motion (right ascension) [mas/yr] 0.61400455 (0.5) -1.482054671 (1) 0.614 (0.5)
Proper motion (declination) [mas/yr] -3.138223232 (0.3) -3.234770184 (0.6) -3.138 (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 21.51 (0.2) 21.46 (0.2) 21.46 (0.2)
g magnitude 19.85 (0.02) 19.87 (0.03) 19.87 (0.03)
r magnitude 19.71 (0.02) 19.73 (0.02) 19.73 (0.02)
i magnitude 19.71 (0.03) 19.73 (0.04) 19.73 (0.04)
z magnitude 19.79 (0.1) 19.73 (0.1) 19.73 (0.1)
G magnitude 19.70 (0.1) 19.74 19.70 (0.005)
BP magnitude 20.00 (0.1) 19.90
RP magnitude 19.39 (0.06) 19.41
Pan g magnitude 19.84 (0.01)
Pan r magnitude 19.71 (0.008)
Pan i magnitude 19.71 (0.01)
Pan z magnitude 19.76 (0.02)
Pan y magnitude 19.55 (0.05)
E(B-V)

* 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.