WD 2357-091

All names: SDSS J000011.57-085008.4, GALEX J000011.5-085008, SDSS J000011.66-085008.3, SDSS J000011.56-085008.3, Gaia DR2 2441060055844546816, J0000-0850, Gaia DR3 2441060055844546816, Gaia EDR3 2441060055844546816, WD 2357-091

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Coutu et al. 2019 Gaia DR2 Stilism Koester et al. 2006 Dufour et al. 2005 Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 00 00 11.68 (0.2) 00 00 11.56 00 00 11.56 00 00 11.67 (0.3) 00 00 11.68 00 00 11.56 (0.2) 00 00 11.56 00 00 10.82 00 00 11.57
Declination -08 50 08.33 (0.2) -08 50 08.34 -08 50 08.38 -08 50 08.33 (0.2) -08 50 08.33 -08 50 08.36 (0.2) -08 50 08.34 -08 50 05.64 -08 50 08.37
Spectral type DQ DQ DQ DQ: DQ DQ DQ DQ DQ
Effective temperature [K] 7853.0 (226) 8042.0 7800.0 (200) 7719.0 (266) 10106.0 (43) 10112.0 (47)
log(g) [cgs] 7.42 8.00 (0) 8.00 (0) 7.65 (0.09) 8.14 (0.6) 9.23 (0.6)
Mass [M] 0.2983 0.389 (0.06)
log(Luminosity) [L]
Cooling age [Gyr] 0.6390
log(H/He)
log(C/He) -5.5071 (0.09) -5.46 (0.08) -5.29 (0.2)
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] 5.61 (0.3) 4.82 4.82 (0.4) 5.61 5.61 (0.3)
Distance [pc] 178.17 (9) 207.26 (18) 207.26 (18) 153.00 178.17 178.17 (9)
Composition He He He
Proper motion (right ascension) [mas/yr] 105.7765063 (0.3) 107.0954928 (0.7) 105.777 (0.3) 104.8
Proper motion (declination) [mas/yr] 1.644210458 (0.2) 3.087224942 (0.6) 1.644 (0.2) 2.8
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.46 (0.03) 19.46 (0.04) 19.41 (0.04) 19.42 19.46 (0.04)
g magnitude 19.10 (0.01) 19.10 (0.01) 19.09 (0.02) 19.09 19.11 (0.02)
r magnitude 19.06 (0.01) 19.06 (0.01) 19.05 (0.02) 19.07 19.06 (0.02)
i magnitude 19.13 (0.02) 19.13 (0.02) 19.12 (0.04) 19.13 19.13 (0.04)
z magnitude 19.33 (0.08) 19.33 (0.09) 19.34 (0.08) 19.34 19.34 (0.08)
G magnitude 19.02 (0.02) 19.06 19.02 19.02 (0.004)
BP magnitude 19.13 (0.02) 19.05
RP magnitude 18.77 (0.04) 18.77
Pan g magnitude 19.09 (0.006)
Pan r magnitude 19.05 (0.009)
Pan i magnitude 19.13 (0.008)
Pan z magnitude 19.24 (0.009)
Pan y magnitude 19.26 (0.02)
E(B-V) 0.009

* 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.