Gaia DR2 3682469122383597056

All names: WISEA J125230.98-023418.4, TIC 953086708, SDSS J125230.94-023417.8, J1252-0234, USNO-A2.0 0825-07855795, SDSS J125230.93-023417.7, EPIC 228939929, GALEX J125230.9-023417, Gaia EDR3 3682469122383597056, Gaia DR2 3682469122383597056, WDJ125230.93-023417.72, Gaia DR3 3682469122383597056

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Caron et al. 2023 Kilic et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 12 52 30.99 (0.09) 12 52 30.98 12 52 30.99 12 52 30.93 (0.09) 12 52 30.98
Declination -02 34 18.36 (0.04) -02 34 18.34 -02 34 18.36 -02 34 17.72 (0.04) -02 34 18.34
Spectral type DC DC DC DC: DC
Effective temperature [K] 7218.0 (71) 7278.0 (48) 7218.0 (71) 7844.0 7564.0 7024.0 (81)
log(g) [cgs] 7.69 (0.02) 7.72 (0.02) 7.70 (0.02) 8.01 7.90 7.65 (0.02)
Mass [M] 0.409 (0.01) 0.424 (0.01) 0.414 (0.01) 0.599 0.519 0.388 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 1.0300 1.1440 1.1320
log(H/He) -3.4 -3.6 -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] 12.86 (0.09) 12.94 (0.1) 12.94 (0.1) 12.86 12.86 (0.09) 12.94 (0.1)
Distance [pc] 77.75 (0.5) 77.28 (0.7) 77.26 (0.7) 77.75 77.75 (0.5) 77.26 (0.7)
Composition He
Proper motion (right ascension) [mas/yr] 49.28099908 (0.1) 49.63634168 (0.3) 49.281 (0.1) 49.63634168
Proper motion (declination) [mas/yr] -39.85544359 (0.1) -39.94951567 (0.2) -39.855 (0.1) -39.94951567
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.90 (0.3)
V magnitude
R magnitude 17.30 (0.3)
I magnitude
J magnitude 17.05 (0.02)
H magnitude 16.95 (0.03)
K magnitude 16.92 (0.05)
u magnitude 18.02 (0.01) 18.04 (0.01) 18.04 (0.01)
g magnitude 17.50 (0.005) 17.50 (0.005)
r magnitude 17.45 (0.005) 17.45 (0.005)
i magnitude 17.51 (0.007) 17.51 (0.007)
z magnitude 17.58 (0.02) 17.58 (0.02)
G magnitude 17.46 (0.01) 17.48 17.46 17.46 (0.003) 17.48
BP magnitude 17.61 (0.01) 17.58 17.58
RP magnitude 17.20 (0.01) 17.19 17.19
Pan g magnitude 17.59 (0.009) 17.59 (0.009)
Pan r magnitude 17.51 (0.01) 17.51 (0.008)
Pan i magnitude 17.53 (0.006) 17.53 (0.007)
Pan z magnitude 17.62 (0.01) 17.62 (0.01)
Pan y magnitude 17.69 (0.01) 17.69 (0.01)
E(B-V) 0.002

* 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.