Gaia DR2 2845447204042284032

All names: LP 401-47, Gaia EDR3 2845447204042284032, LSPM J2307+2701, USNO-B1.0 1170-00653384, SDSS J230713.29+270138.3, SDSS J230713.30+270138.4, WDJ230713.29+270136.84, NLTT 55875, Gaia DR2 2845447204042284032, WDJ230713.29+270136.85, Gaia DR3 2845447204042284032

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 23 07 13.31 (0.1) 23 07 13.31 23 07 13.31 23 07 13.29 (0.1) 23 07 13.31
Declination 27 01 39.25 (0.1) 27 01 39.17 27 01 39.25 27 01 36.85 (0.1) 27 01 39.17
Spectral type DC D
Effective temperature [K] 7484.0 7198.0 6853.0 (154)
log(g) [cgs] 8.26 8.16 8.02 (0.04)
Mass [M] 0.76 0.675 0.586 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 2.0780 1.9190
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 11.75 (0.1) 11.76 (0.2) 11.75 11.75 (0.1) 11.76 (0.2)
Distance [pc] 85.12 (1) 85.00 (1) 85.12 85.12 (1) 85.00 (1)
Composition
Proper motion (right ascension) [mas/yr] 14.22005246 (0.1) 14.1231186 (0.3) 14.22 (0.1) 14.1231186
Proper motion (declination) [mas/yr] 150.0503428 (0.1) 150.2109076 (0.2) 150.05 (0.1) 150.2109076
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.00
V magnitude
R magnitude 17.80
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.87 (0.02) 18.87 (0.02)
g magnitude 18.39 (0.007) 18.39 (0.007)
r magnitude 18.22 (0.008) 18.22 (0.008)
i magnitude 18.20 (0.01) 18.20 (0.01)
z magnitude 18.23 (0.03) 18.23 (0.03)
G magnitude 18.20 (0.02) 18.23 18.20 18.20 (0.003) 18.23
BP magnitude 18.41 (0.02) 18.40 18.40
RP magnitude 17.91 (0.02) 17.94 17.94
Pan g magnitude 18.37 (0.005)
Pan r magnitude 18.25 (0.01)
Pan i magnitude 18.24 (0.008)
Pan z magnitude 18.31 (0.01)
Pan y magnitude 18.40 (0.02)
E(B-V) 0.009

* 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.