BD+37 442

All names: BD+37 442, HIP 9221, Gaia DR2 343066594441701504, GSC 02816-01364, GEN# +0.03700442, TYC 2816-1364-1, HIC 9221, BD+37442, 2MASS J01583343+3834238, Cl* NGC 752 PLA 1096, TIC 67519898, Renson 3070, Gaia DR3 343066598739655680, TD1 30889

Parameter Unit Geier 2020 Stilism Simbad
Right ascension 01 58 33.43 01 58 33.43 (0.05)
Declination 38 34 23.82 38 34 23.84 (0.04)
Spectral type sdO sdOHe
Effective temperature [K] 60000.0
log(g) [cgs] 4.00
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 0.77 (0.2) 0.94 (0.06)
Distance [pc] 1306.17 (280) 1061.80 (70)
Composition
Proper motion (right ascension) [mas/yr] -9.988 (0.2) -10.487 (0.07)
Proper motion (declination) [mas/yr] -7.488 (0.2) -7.274 (0.07)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 9.69
V magnitude 9.92
R magnitude
I magnitude
J magnitude 10.55 (0.02) 10.55 (0.02)
H magnitude 10.68 (0.02) 10.68 (0.02)
K magnitude 10.75 (0.02) 10.75 (0.02)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 9.95 (0.002) 9.94 (0.003)
BP magnitude 9.81 (0.003)
RP magnitude 10.21 (0.003)
Pan g magnitude 9.74
Pan r magnitude 10.19
Pan i magnitude 10.55
Pan z magnitude 10.82
Pan y magnitude 11.05
E(B-V) 0.047

* 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.