GD 1670

All names: UCAC3 114-489529, Gaia DR3 2325117757286653440, WD 2329-332, Gaia DR2 2325117757286653440, USNO-B1.0 0569-01168323, GALEX J233210.9-330107, Gaia EDR3 2325117757286653440, MCT 2329-3317, WD2329-332, GD 1670

Parameter Unit Gaia EDR3 Bergeron et al. 2021 Gaia DR2 Stilism Koester et al. 2009 Koester et al. 2001 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999)
Right ascension 23 32 10.90 (0.04) 23 32 10.90 (0.06) 23 32 10.90 23 32 10.90 23 32 10.90 (0.04) 23 32 10.30
Declination -33 01 07.98 (0.05) -33 01 07.98 (0.08) -33 01 08.00 -33 01 07.98 -33 01 07.94 (0.05) -33 01 01.56
Spectral type DA DA DA DA DA
Effective temperature [K] 20602.0 (668) 20457.0 (70) 21069.0 (127) 21362.0 (481)
log(g) [cgs] 7.97 (0.1) 7.91 (0.01) 7.78 (0.02) 7.98 (0.02)
Mass [M] 0.61 (0.06) 0.52 0.614 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 0.0528
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] 6.72 (0.06) 6.72 (0.1) 6.72 6.72 (0.06)
Distance [pc] 148.79 (1) 148.00 148.81 (2) 148.79 148.79 (1)
Composition H
Proper motion (right ascension) [mas/yr] 5.240668252 (0.04) 5.308353378 (0.1) 5.241 (0.04)
Proper motion (declination) [mas/yr] -2.427780465 (0.05) -2.323735304 (0.2) -2.428 (0.05)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.26 16.26 16.40
V magnitude
R magnitude 16.16
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 16.50 (0.005) 16.53 16.50 16.50 (0.003)
BP magnitude 16.42 (0.005) 16.38
RP magnitude 16.70 (0.006) 16.71
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.003

* 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.