Gaia DR2 1038360708050042496

All names: NLTT 21517, J0921+5935, GALEX J092149.3+593550, Gaia EDR3 1038360708050042496, WDJ092149.51+593552.50, SDSS J092149.50+593552.4, Gaia DR3 1038360708050042496, Gaia DR2 1038360708050042496, USNO-B1.0 1495-00188063, LP 91-23, SDSS J092149.49+593552.4, LSPM J0921+5935

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 09 21 49.27 (0.1) 09 21 49.28 09 21 49.27 09 21 49.51 (0.1) 09 21 49.28
Declination 59 35 49.89 (0.1) 59 35 49.97 59 35 49.89 59 35 52.50 (0.1) 59 35 49.97
Spectral type DC DC DC DA: DC
Effective temperature [K] 5775.0 (63) 6076.0 (66) 5775.0 (63) 6301.0 6050.0 6371.0 (111)
log(g) [cgs] 8.07 (0.03) 8.24 (0.04) 8.07 (0.04) 8.36 8.23 8.38 (0.04)
Mass [M] 0.615 (0.03) 0.725 (0.03) 0.614 (0.03) 0.817 0.717 0.834 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 4.1400 4.1220 4.1780
log(H/He) -3.0 -3
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] 11.40 (0.2) 11.39 (0.3) 11.39 (0.3) 11.40 11.40 (0.2) 11.39 (0.3)
Distance [pc] 87.72 (2) 87.80 (2) 87.78 (2) 87.72 87.72 (2) 87.78 (2)
Composition He
Proper motion (right ascension) [mas/yr] -113.1067795 (0.1) -112.9125109 (0.5) -113.107 (0.1) -112.9125109
Proper motion (declination) [mas/yr] -162.9584252 (0.2) -163.3118299 (0.4) -162.958 (0.2) -163.3118299
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 19.50
V magnitude
R magnitude 19.00
I magnitude
J magnitude 18.36 (0.07)
H magnitude
K magnitude
u magnitude 20.15 (0.04) 20.15 (0.04) 20.24 (0.06)
g magnitude 19.40 (0.01) 19.36 (0.01)
r magnitude 19.07 (0.01) 19.08 (0.01)
i magnitude 18.99 (0.01) 18.99 (0.01)
z magnitude 19.05 (0.05) 18.95 (0.04)
G magnitude 19.07 (0.03) 19.11 19.07 19.07 (0.003) 19.11
BP magnitude 19.37 (0.03) 19.37 19.37
RP magnitude 18.65 (0.02) 18.63 18.63
Pan g magnitude 19.34 (0.01) 19.34 (0.01)
Pan r magnitude 19.07 (0.005) 19.07 (0.005)
Pan i magnitude 18.99 (0.008) 18.99 (0.008)
Pan z magnitude 19.00 (0.02) 19.00 (0.02)
Pan y magnitude 18.96 (0.02) 18.96 (0.02)
E(B-V) 0.005

* 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.