SDSS J084938.85+145503.2

All names: USNO-B1.0 1049-00172847, SDSS J084938.85+145503.1, SDSS J084938.85+145503.2, GALEX J084938.8+145503, SDSS J084938.84+145503.2, Gaia EDR3 609715515845349888, SDSS J084938.84+145503.1, WD 0846+151, Gaia DR3 609715515845349888, Gaia DR2 609715515845349888

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Simbad White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 08 49 38.81 (0.2) 08 49 38.85 08 49 38.81 (0.3) 08 49 38.86 (0.2) 08 49 39.05 08 49 38.85
Declination 14 55 03.25 (0.1) 14 55 03.19 14 55 03.24 (0.2) 14 55 03.18 (0.1) 14 55 00.48 14 55 03.20
Spectral type DA DA ? DA DA
Effective temperature [K] 8762.0 8649.0 (68)
log(g) [cgs] 8.18 8.60 (0.1)
Mass [M] 0.707 0.967 (0.06)
log(Luminosity) [L]
Cooling age [Gyr] 1.1050
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] 6.53 (0.3) 6.60 (0.4) 6.53 (0.3)
Distance [pc] 153.06 (6) 151.59 (9) 153.06 (6)
Composition H
Proper motion (right ascension) [mas/yr] -52.50512228 (0.3) -52.03244122 (0.6) -52.505 (0.3)
Proper motion (declination) [mas/yr] 4.041646901 (0.2) 3.661905455 (0.4) 4.042 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 19.00
V magnitude
R magnitude 18.90
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.20 (0.02) 19.20 (0.02) 19.25 (0.03)
g magnitude 18.87 (0.009) 18.87 (0.009) 18.89 (0.02)
r magnitude 18.85 (0.01) 18.85 (0.01) 18.87 (0.02)
i magnitude 18.94 (0.01) 18.94 (0.01) 18.92 (0.02)
z magnitude 18.99 (0.04) 18.99 (0.04) 18.98 (0.04)
G magnitude 18.80 (0.02) 18.83 18.80 (0.003)
BP magnitude 18.94 (0.02) 18.80
RP magnitude 18.64 (0.03) 18.65
Pan g magnitude 18.85 (0.01)
Pan r magnitude 18.86 (0.005)
Pan i magnitude 18.93 (0.007)
Pan z magnitude 19.05 (0.04)
Pan y magnitude 19.13 (0.05)
E(B-V) 0.008

* 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.