Gaia DR2 2872720967925458560

All names: SDSS J233059.21+335021.1, Gaia EDR3 2872720967925458560, SDSS J233059.21+335021.2, WDJ233059.05+335020.49, Gaia DR3 2872720967925458560, LSPM J2330+3350, USNO-B1.0 1238-00555846, Gaia DR2 2872720967925458560

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 23 30 59.27 (0.1) 23 30 59.26 23 30 59.27 23 30 59.05 (0.1) 23 30 59.26
Declination 33 50 21.80 (0.1) 33 50 21.76 33 50 21.80 33 50 20.49 (0.1) 33 50 21.76
Spectral type DA DA DA
Effective temperature [K] 5690.0 (44) 5525.0 5252.0 5711.0 (107)
log(g) [cgs] 8.07 (0.03) 8.05 7.88 8.09 (0.04)
Mass [M] 0.629 (0.02) 0.618 0.497 0.644 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 3.5420 3.8050
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 11.50 (0.2) 12.03 (0.4) 11.50 11.50 (0.2) 12.03 (0.4)
Distance [pc] 86.96 (2) 83.15 (3) 86.96 86.96 (2) 83.15 (3)
Composition H
Proper motion (right ascension) [mas/yr] 172.4998892 (0.2) 171.9006852 (0.4) 172.5 (0.2) 171.9006852
Proper motion (declination) [mas/yr] 81.86304948 (0.2) 81.77165088 (0.3) 81.863 (0.2) 81.77165088
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 19.70
V magnitude
R magnitude 19.20
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.83 (0.04) 18.83 (0.04)
g magnitude 21.69 (0.2) 21.69 (0.2)
r magnitude 24.80 (4) 24.80 (4)
i magnitude 18.03 (0.02) 18.03 (0.02)
z magnitude 20.02 (0.4) 20.02 (0.4)
G magnitude 19.06 (0.03) 19.09 19.06 19.06 (0.003) 19.09
BP magnitude 19.51 (0.03) 19.45 19.45
RP magnitude 18.58 (0.02) 18.54 18.54
Pan g magnitude 19.48 (0.009)
Pan r magnitude 19.04 (0.009)
Pan i magnitude 18.88 (0.009)
Pan z magnitude 18.80 (0.01)
Pan y magnitude 18.81 (0.04)
E(B-V) 0.008

* 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.