WD 2308+050

All names: 2MASS J23111791+0519289, GALEX J231117.8+051928, Gaia DR2 2662658107503521536, Gaia EDR3 2662658107503521536, Gaia DR3 2662658107503521536, PG 2308+051, WD 2308+050, PB 5280, TIC 262568916, USNO-B1.0 0953-00588150

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H Gaia DR2 Stilism Gianninas et al. 2011 Koester et al. 2009 Koester et al. 2005 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999)
Right ascension 23 11 17.95 (0.05) 23 11 17.95 (0.06) 23 11 17.95 23 11 17.92 (0.05) 23 11 17.45
Declination 05 19 29.04 (0.04) 05 19 29.03 (0.05) 05 19 29.04 05 19 28.72 (0.04) 05 19 24.60
Spectral type DA DA DA DA DA1.4 DA2
Effective temperature [K] 23149.0 36500.0 (578) 36062.0 (68) 36300.0 31662.0 (859)
log(g) [cgs] 7.14 7.58 (0.06) 7.61 (0.01) 7.60 7.53 (0.03)
Mass [M] 0.31 0.48 (0.02) 0.445 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.0210
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] 4.33 (0.06) 4.26 (0.08) 4.33 4.33 (0.06)
Distance [pc] 230.94 (3) 234.64 (4) 267.00 230.94 230.94 (3)
Composition H H H
Proper motion (right ascension) [mas/yr] 30.41630685 (0.06) 30.39964171 (0.1) 30.416 (0.06)
Proper motion (declination) [mas/yr] 19.96459173 (0.05) 20.07966892 (0.1) 19.965 (0.05)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.66
V magnitude 16.02
R magnitude 16.20
I magnitude
J magnitude 16.70 (0.1)
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 15.97 (0.003) 15.98 15.97 15.97 (0.003)
BP magnitude 15.84 (0.003) 15.78
RP magnitude 16.22 (0.003) 16.21
Pan g magnitude 15.82 (0.006)
Pan r magnitude 16.20 (0.004)
Pan i magnitude 16.53 (0.003)
Pan z magnitude 16.82 (0.003)
Pan y magnitude 17.00 (0.007)
E(B-V) 0.044

* 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.