SDSS J100218.27+273903.7

All names: SDSS J100218.27+273903.70, SDSS J100218.27+273903.6, GALEX J100218.3+273904, Gaia DR3 740153436401985280, SDSS J100218.27+273903.7, Gaia EDR3 740153436401985280, Gaia DR2 740153436401985280

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 10 02 18.27 (0.5) 10 02 18.27 10 02 18.27 (0.7) 10 02 18.27 (0.5) 10 02 18.27
Declination 27 39 03.62 (0.4) 27 39 03.63 27 39 03.62 (0.8) 27 39 03.68 (0.4) 27 39 03.66
Spectral type DB DB DB DB
Effective temperature [K] 16295.0 17219.0 15558.0 17108.0 (621)
log(g) [cgs] 8.57 8.66 8.52 8.79 (0.3)
Mass [M] 0.953 1.01 0.922 1.088 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.4299
log(H/He) -4.942
log(C/He)
log(Ca/He)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 2.75 (0.6) 2.44 (1) 2.75 (0.6)
Distance [pc] 364.21 (86) 409.85 (161) 364.21 (86)
Composition He
Proper motion (right ascension) [mas/yr] -5.174188674 (0.7) -4.268431287 (1) -5.174 (0.7)
Proper motion (declination) [mas/yr] -3.377327274 (0.5) -4.116713425 (1) -3.377 (0.5)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.86 (0.04) 19.86 (0.04) 19.88 (0.04)
g magnitude 19.98 (0.02) 19.96 (0.02) 20.03 (0.02)
r magnitude 20.28 (0.03) 20.27 (0.03) 20.33 (0.03)
i magnitude 20.54 (0.05) 20.53 (0.04) 20.57 (0.05)
z magnitude 20.79 (0.2) 20.79 (0.2) 20.79 (0.2)
G magnitude 20.12 (0.06) 20.18 20.12 (0.006)
BP magnitude 20.10 (0.06) 19.87
RP magnitude 20.03 (0.08) 20.25
Pan g magnitude 20.00 (0.01)
Pan r magnitude 20.33 (0.02)
Pan i magnitude 20.49 (0.02)
Pan z magnitude 20.59 (0.05)
Pan y magnitude
E(B-V) 0.020

* Constant surface field

Special notes:

Spectra

Controls

Normalize at:
Normalize by mean flux

Range:

x: to
y: to

Spectra available:

Spectra without link are available upon request

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.