SDSS J232507.22+094901.5

All names: SDSS J232507.22+094901.5, Gaia DR3 2762042070184969216, Gaia EDR3 2762042070184969216, Gaia DR2 2762042070184969216, SDSS J232507.21+094901.5, SDSS J232507.22+094901.59, GALEX J232507.2+094901, J2325+0949

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Caron et al. 2023 MWDD H MWDD HE Gaia DR2 Stilism Kepler et al. 2016 Vincent et al. 2024 Simbad Vincent et al. 2023
Right ascension 23 25 07.22 (0.3) 23 25 07.22 23 25 07.22 (0.3) 23 25 07.22 23 25 07.22 (0.3)
Declination 09 49 01.00 (0.2) 09 49 01.58 09 49 01.04 (0.2) 09 49 01.00 09 49 02.22 (0.2)
Spectral type DC: DC: DC: DC: DC DC DC
Effective temperature [K] 7012.0 (53) 7538.0 7278.0 7848.0 (86) 7245.0 (285)
log(g) [cgs] 8.00 (0.04) 8.24 8.14 8.00 (0) 8.08 (0.07)
Mass [M] 0.571 (0.03) 0.741 0.664 0.624 (0.06)
log(Luminosity) [L]
Cooling age [Gyr] 1.6100 1.8900 1.7760
log(H/He) -3.4
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] 9.88 (0.2) 9.94 (0.3) 9.94 (0.3) 9.88 9.88 (0.2)
Distance [pc] 101.18 (2) 100.60 (3) 100.60 (3) 101.18 101.18 (2)
Composition He
Proper motion (right ascension) [mas/yr] 0.433216685 (0.4) -0.44403066 (0.6) 0.433 (0.4)
Proper motion (declination) [mas/yr] -75.88710707 (0.2) -76.31076445 (0.3) -75.887 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 18.19 (0.06)
H magnitude 17.95 (0.1)
K magnitude 17.87 (0.2)
u magnitude 19.17 (0.03) 19.17 (0.03) 19.16 (0.04) 19.17 (0.03)
g magnitude 18.67 (0.008) 18.68 (0.02) 18.66 (0.008)
r magnitude 18.55 (0.009) 18.55 (0.01) 18.55 (0.009)
i magnitude 18.54 (0.01) 18.54 (0.02) 18.54 (0.01)
z magnitude 18.66 (0.04) 18.63 (0.04) 18.65 (0.04)
G magnitude 18.51 (0.04) 18.54 18.51 18.51 (0.004)
BP magnitude 18.60 (0.04) 18.61
RP magnitude 18.23 (0.02) 18.23
Pan g magnitude 18.67 (0.006) 18.67 (0.006)
Pan r magnitude 18.54 (0.002) 18.54 (0.002)
Pan i magnitude 18.55 (0.003) 18.55 (0.003)
Pan z magnitude 18.64 (0.02) 18.64 (0.02)
Pan y magnitude 18.67 (0.03) 18.67 (0.03)
E(B-V) 0.010

* 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.