SDSS J072707.41+351429.2

All names: GALEX J072707.4+351429, Gaia DR3 896927954684929408, Gaia EDR3 896927954684929408, SDSS J072707.40+351429.40, SDSS J072707.40+351429.3, SDSS J072707.40+351429.2, Gaia DR2 896927954684929408, SDSS J072707.40+351429.4, SDSS J072707.41+351429.2

Parameter Unit Gaia EDR3 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 07 27 07.40 (0.3) 07 27 07.41 07 27 07.40 (0.4) 07 27 07.41 (0.3) 07 27 07.40
Declination 35 14 28.63 (0.3) 35 14 29.26 35 14 28.65 (0.4) 35 14 29.24 (0.3) 35 14 29.36
Spectral type DB DB DBAZH: DB
Effective temperature [K] 14761.0 17788.0 18785.0 14696.0 (96) 14643.0 (187)
log(g) [cgs] 7.98 8.30 8.43 8.00 (0) 8.08 (0.1)
Mass [M] 0.579 0.777 0.863
log(Luminosity) [L]
Cooling age [Gyr] 0.2152
log(H/He) -5.712 <-5.42
log(C/He)
log(Ca/He) <-7.77
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] 2.50 (0.3) 2.53 (0.5) 2.50 (0.3)
Distance [pc] 399.64 (53) 396.02 (75) 394.00 399.63 (53)
Composition He
Proper motion (right ascension) [mas/yr] -9.416569815 (0.3) -9.371445932 (0.8) -9.417 (0.3)
Proper motion (declination) [mas/yr] -38.50284508 (0.3) -37.59905056 (0.8) -38.503 (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 19.16 (0.02) 19.16 (0.02) 19.25 (0.04)
g magnitude 19.26 (0.01) 19.26 (0.01) 19.46 (0.05)
r magnitude 19.52 (0.02) 19.52 (0.02) 19.72 (0.09)
i magnitude 19.86 (0.03) 19.86 (0.03) 19.74 (0.1)
z magnitude 20.22 (0.1) 20.22 (0.1) 20.00 (0.2)
G magnitude 19.33 (0.07) 19.37 19.33 (0.005)
BP magnitude 19.23 (0.07) 18.95
RP magnitude 19.13 (0.05) 19.15
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.023

* 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.