SDSS J094835.94+555057.4

All names: Gaia DR3 1021985681376882432, GALEX J094835.9+555057, Gaia EDR3 1021985681376882432, Gaia DR2 1021985681376882432, SDSS J094835.94+555057.4, SDSSJ094835.94+555057.4, SDSS J094835.94+555057.3

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Geier 2020 MWDD H Gaia DR2 Simbad Eisenstein et al. 2006
Right ascension 09 48 35.94 (0.2) 09 48 35.94 09 48 35.94 09 48 35.94 (0.2) 09 48 35.94 (0.2) 09 48 35.95
Declination 55 50 57.25 (0.2) 55 50 57.40 55 50 57.40 55 50 57.26 (0.3) 55 50 57.38 (0.2) 55 50 57.46
Spectral type sdB sdB sdB SDB
Effective temperature [K] 24491.0 31899.0 (1009)
log(g) [cgs] 6.63 5.48 (0.2)
Mass [M] 0.221
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] -0.41 (0.2) -0.59 (0.4) -0.59 (0.4)
Distance [pc]
Composition
Proper motion (right ascension) [mas/yr] -1.824114829 (0.2) -2.159 (0.6) -2.159243971 (0.6) -1.824 (0.2) 4.2
Proper motion (declination) [mas/yr] -7.804082519 (0.2) -8.808 (0.8) -8.808444684 (0.8) -7.804 (0.2) -4.3
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.76 (0.02) 18.76 (0.02) 18.75 (0.02) 18.73 (0.03)
g magnitude 19.04 (0.01) 19.04 (0.01) 19.02 (0.01) 19.05 (0.03)
r magnitude 19.49 (0.02) 19.49 (0.01) 19.49 (0.01) 19.52 (0.02)
i magnitude 19.81 (0.03) 19.81 (0.03) 19.93 (0.03) 19.96 (0.03)
z magnitude 20.17 (0.1) 20.17 (0.1) 20.17 (0.1) 20.21 (0.1)
G magnitude 19.26 (0.02) 19.30 (0.004) 19.30 19.26 (0.004)
BP magnitude 19.12 (0.02) 19.06 (0.04) 19.06
RP magnitude 19.66 (0.05) 19.66 (0.07) 19.66
Pan g magnitude 19.07 (0.007) 19.07 (0.007)
Pan r magnitude 19.49 (0.02) 19.49 (0.02)
Pan i magnitude 19.87 (0.01) 19.87 (0.01)
Pan z magnitude 20.13 (0.05) 20.13 (0.05)
Pan y magnitude 19.92 (0.08) 19.92 (0.08)
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.