Gaia DR2 2797842095770634752

All names: SDSS J001743.72+202909.2, Gaia DR2 2797842095770634752, Gaia DR3 2797842095770634752, Gaia EDR3 2797842095770634752, WDJ001743.71+202909.70

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 00 17 43.74 (0.1) 00 17 43.74 00 17 43.74 00 17 43.71 (0.1) 00 17 43.74
Declination 20 29 08.93 (0.1) 20 29 08.95 20 29 08.93 20 29 09.71 (0.1) 20 29 08.95
Spectral type DC DC
Effective temperature [K] 7751.0 7471.0 7247.0 (157)
log(g) [cgs] 8.24 8.14 7.99 (0.04)
Mass [M] 0.744 0.665 0.569 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 1.7560 1.6300
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 9.92 (0.2) 10.16 (0.3) 9.92 9.92 (0.2) 10.16 (0.3)
Distance [pc] 100.78 (2) 98.44 (3) 100.78 100.78 (2) 98.44 (3)
Composition
Proper motion (right ascension) [mas/yr] 22.10363493 (0.2) 22.0427098 (0.4) 22.104 (0.2) 22.0427098
Proper motion (declination) [mas/yr] -49.02423101 (0.2) -48.29809273 (0.5) -49.024 (0.2) -48.29809273
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.92 (0.03) 18.92 (0.03)
g magnitude 18.54 (0.008) 18.54 (0.008)
r magnitude 18.39 (0.009) 18.39 (0.009)
i magnitude 18.43 (0.01) 18.43 (0.01)
z magnitude 18.52 (0.03) 18.52 (0.03)
G magnitude 18.38 (0.02) 18.41 18.38 18.38 (0.003) 18.41
BP magnitude 18.54 (0.02) 18.49 18.49
RP magnitude 18.13 (0.02) 18.12 18.12
Pan g magnitude 18.50 (0.006)
Pan r magnitude 18.42 (0.006)
Pan i magnitude 18.45 (0.007)
Pan z magnitude 18.54 (0.009)
Pan y magnitude 18.54 (0.02)
E(B-V) 0.006

* 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.