WD 1200+088

All names: SDSS J120324.07+083410.3, SDSS J120324.13+083409.92, WD 1200+088, Gaia DR3 3899809757644549632, USNO-B1.0 0985-00217093, Gaia DR2 3899809757644549632, SDSS J120324.07+083410.4, WDJ120324.16+083409.72, J1203+0834, SDSS J120324.13+083409.9, Gaia EDR3 3899809757644549632, LSPM J1203+0834

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 SDSS DR10 Kilic et al. 2025 Caron et al. 2023 Coutu et al. 2019 MWDD H Gaia DR2 Stilism Kepler et al. 2015 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999) Vincent et al. 2023
Right ascension 12 03 23.96 (0.1) 12 03 24.07 12 03 24.07 12 03 24.16 12 03 23.97 (0.2) 12 03 23.96 12 03 24.16 (0.1) 12 03 23.97 12 03 24.67
Declination 08 34 11.22 (0.09) 08 34 10.40 08 34 10.40 08 34 09.72 08 34 11.18 (0.1) 08 34 11.22 08 34 09.72 (0.09) 08 34 11.18 08 33 59.76
Spectral type DZ DZ DZ DZ DZ DZ DZ ? DZ
Effective temperature [K] 6204.0 (34) 6066.0 (27) 6009.0 (54) 7510.0 6406.0 (190) 6582.0 (125)
log(g) [cgs] 8.08 (0.01) 8.00 (0.02) 7.96 8.45 8.00 (0) 8.20 (0.03)
Mass [M] 0.62 (0.01) 0.574 (0.02) 0.55 0.883 0.701 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 2.4600 2.3700 3.0450
log(H/He) -5.0 -4.0 <-3.0087
log(C/He)
log(Ca/He) -10.05 -10.2 -10.2085 (0.05) -9.615 (0.02)
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] 16.01 (0.1) 15.94 (0.3) 15.94 15.94 (0.3) 16.01 16.01 (0.1) 15.94 (0.3)
Distance [pc] 62.44 (0.5) 62.74 (1) 62.73 (1) 62.73 (1) 62.44 62.44 (0.5) 62.73 (1)
Composition He He He He
Proper motion (right ascension) [mas/yr] -183.1424117 (0.1) -183.3318023 (0.3) -183.142 (0.1) -183.3318023
Proper motion (declination) [mas/yr] 93.78069657 (0.09) 94.08594914 (0.3) 93.781 (0.09) 94.08594914
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.20
V magnitude
R magnitude 18.00
I magnitude
J magnitude
H magnitude 17.19 (0.04)
K magnitude 17.07 (0.07)
u magnitude 19.14 (0.03) 19.14 (0.03) 19.11 (0.03) 19.14 (0.03) 19.14 (0.03) 19.14 (0.03)
g magnitude 18.04 (0.006) 18.04 (0.006) 18.04 (0.01) 18.04 (0.006) 18.04 (0.006)
r magnitude 17.84 (0.006) 17.83 (0.006) 17.83 (0.01) 17.83 (0.006) 17.83 (0.006)
i magnitude 17.87 (0.007) 17.87 (0.007) 17.87 (0.01) 17.87 (0.007) 17.87 (0.007)
z magnitude 17.99 (0.02) 17.99 (0.02) 17.99 (0.02) 17.98 (0.03) 17.98 (0.03)
G magnitude 17.86 (0.01) 17.88 17.86 17.86 (0.003) 17.88
BP magnitude 18.06 (0.01) 18.08 18.08
RP magnitude 17.56 (0.01) 17.55 17.55
Pan g magnitude 18.00 (0.005) 18.00 (0.004)
Pan r magnitude 17.86 (0.004) 17.86 (0.004)
Pan i magnitude 17.88 (0.005) 17.88 (0.005)
Pan z magnitude 17.95 (0.008) 17.95 (0.007)
Pan y magnitude 18.02 (0.01) 18.02 (0.01)
E(B-V) 0.002

* Constant surface field

Special notes:

Spectra

Controls

Normalize at:
Normalize by mean flux

Range:

x: to
y: to

Spectra available:

Spectra without link are available upon request

Absorption lines

Photometric filters

BVRI
ugriz

Photometric fit





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.