Gaia DR2 2747384888699406080

All names: USNO-B1.0 0959-00004066, SDSS J002702.88+055429.7, Gaia EDR3 2747384888699406080, WDJ002702.93+055433.40, J0027+0554, WDJ00272.93+055433.39, NLTT 1424, LP 525-20, Gaia DR3 2747384888699406080, LSPM J0027+0554, Gaia DR2 2747384888699406080

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 O'Brien et al. 2024 Caron et al. 2023 Bergeron et al. 2022 McCleery et al. 2020 Tremblay et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 00 27 02.83 (0.1) 00 27 02.83 (0.2) 00 27 02.83 00 27 02.83 00 27 02.93 (0.1) 00 27 02.83
Declination 05 54 26.64 (0.1) 05 54 26.85 (0.1) 05 54 26.85 05 54 26.64 05 54 33.40 (0.1) 05 54 26.85
Spectral type DC-IRfaint DC DC DC DC DC DZ: DC
Effective temperature [K] 4575.0 (22) 5046.0 (89) 4594.0 (23) 4575.0 (22) 5048.4 (68) 5050.0 (70) 5404.0 5124.0 4908.0 (39)
log(g) [cgs] 8.18 (0.01) 8.25 (0.07) 8.18 (0.01) 8.28 (0.05) 8.28 (0.06) 8.49 8.34 8.26 (0.02)
Mass [M] 0.683 (0.009) 0.729 (0.04) 0.684 (0.009) 0.683 (0.009) 0.905 0.79 0.737 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 7.7700 7.4440 7.4560 6.8910
log(H/He) -1.66 -1.61 -1.66
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] 27.06 (0.2) 27.06 (0.2) 27.25 (0.2) 27.25 (0.2) 27.25 (0.2) 27.06 27.06 (0.2) 27.25 (0.2)
Distance [pc] 36.96 (0.2) 36.95 (0.2) 36.70 (0.3) 36.70 (0.3) 36.70 (0.3) 36.96 36.96 (0.2) 36.70 (0.3)
Composition He He
Proper motion (right ascension) [mas/yr] -92.40195821 (0.2) -92.76287726 (0.6) -92.402 (0.2) -92.76287726
Proper motion (declination) [mas/yr] -422.5852912 (0.1) -422.266922 (0.4) -422.585 (0.1) -422.266922
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.70
V magnitude
R magnitude 17.00
I magnitude
J magnitude 17.49 (0.03)
H magnitude 17.79 (0.06)
K magnitude 17.82 (0.1)
u magnitude 20.35 (0.06) 20.34 (0.06) 20.34 (0.06)
g magnitude 18.67 (0.008) 18.67 (0.008)
r magnitude 17.94 (0.007) 17.94 (0.007)
i magnitude 17.68 (0.007) 17.68 (0.007)
z magnitude 17.68 (0.02) 17.68 (0.02)
G magnitude 18.02 (0.02) 18.03 18.03 18.02 18.02 (0.003) 18.03
BP magnitude 18.51 (0.02) 18.55 18.55
RP magnitude 17.43 (0.01) 17.43 17.43
Pan g magnitude 18.57 (0.004) 18.57 (0.004)
Pan r magnitude 17.96 (0.004) 17.96 (0.004)
Pan i magnitude 17.72 (0.005) 17.72 (0.005)
Pan z magnitude 17.75 (0.005) 17.75 (0.005)
Pan y magnitude 17.87 (0.004) 17.87 (0.004)
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.