Gaia DR2 1094919590481107968

All names: 2MASS J07542936+6611065, WDJ075429.35+661106.64, Gaia DR3 1094919590481107968, USNO-B1.0 1561-00115200, GD 454, Gaia DR2 1094919590481107968, SDSS J075429.33+661105.7, J0754+6611, TIC 457099062, GALEX J075429.2+661106, Gaia EDR3 1094919590481107968, LSPM J0754+6611

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 07 54 29.27 (0.03) 07 54 29.27 07 54 29.27 07 54 29.35 (0.03) 07 54 29.27
Declination 66 11 03.54 (0.04) 66 11 03.63 66 11 03.54 66 11 06.64 (0.04) 66 11 03.63
Spectral type DC DC DC DC: DC
Effective temperature [K] 6655.0 (26) 6702.0 (24) 6655.0 (26) 7335.0 7056.0 6573.0 (41)
log(g) [cgs] 7.97 (0.007) 7.98 (0.007) 7.97 (0.008) 8.27 8.16 7.99 (0.01)
Mass [M] 0.557 (0.006) 0.564 (0.006) 0.555 (0.006) 0.762 0.677 0.566 (0.009)
log(Luminosity) [L]
Cooling age [Gyr] 1.7700 2.2370 2.0750
log(H/He) -3.2 -3.2 -3.2
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] 24.26 (0.06) 24.24 (0.07) 24.24 (0.07) 24.26 24.26 (0.06) 24.24 (0.07)
Distance [pc] 41.22 (0.1) 41.25 (0.1) 41.26 (0.1) 41.22 41.22 (0.1) 41.26 (0.1)
Composition He
Proper motion (right ascension) [mas/yr] -29.7312832 (0.03) -29.62751794 (0.07) -29.731 (0.04) -29.62751794
Proper motion (declination) [mas/yr] -193.9861077 (0.04) -194.0598538 (0.1) -193.986 (0.04) -194.0598538
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.50
V magnitude
R magnitude 16.40
I magnitude
J magnitude 16.18 (0.09) 16.18 (0.09)
H magnitude
K magnitude
u magnitude 17.46 (0.01) 17.47 (0.01) 17.47 (0.01)
g magnitude 16.94 (0.005) 16.94 (0.005)
r magnitude 16.77 (0.005) 16.77 (0.005)
i magnitude 16.74 (0.006) 16.74 (0.006)
z magnitude 16.82 (0.01) 16.82 (0.01)
G magnitude 16.72 (0.005) 16.73 16.72 16.72 (0.003) 16.73
BP magnitude 16.89 (0.005) 16.89 16.89
RP magnitude 16.42 (0.005) 16.41 16.41
Pan g magnitude 16.90 (0.004) 16.90 (0.003)
Pan r magnitude 16.75 (0.004) 16.75 (0.005)
Pan i magnitude 16.74 (0.002) 16.74 (0.002)
Pan z magnitude 16.79 (0.005) 16.79 (0.005)
Pan y magnitude 16.90 (0.008) 16.90 (0.008)
E(B-V) 0.001

* 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.