SDSS J170554.14+272602.8

All names: SDSS J170554.13+272602.7, Gaia DR3 4574900658626230144, SDSS J170554.14+272602.7, SDSS J170554.14+272602.8, Gaia EDR3 4574900658626230144, GALEX J170554.1+272602, Gaia DR2 4574900658626230144

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 17 05 54.14 (0.2) 17 05 54.14 17 05 54.14 (0.2) 17 05 54.14 17 05 54.13 (0.2) 17 05 54.14
Declination 27 26 02.37 (0.2) 27 26 02.78 27 26 02.39 (0.2) 27 26 02.37 27 26 02.94 (0.2) 27 26 02.77
Spectral type DA DA DA DA DA
Effective temperature [K] 10994.0 12195.0 (790) 15427.0 (628)
log(g) [cgs] 7.59 7.75 (0.1) 7.89 (0.06)
Mass [M☉] 0.395 0.47 (0.08) 0.557 (0.03)
log(Luminosity) [L☉]
Cooling age [Gyr] 0.2912
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] 2.55 (0.2) 2.48 (0.3) 2.55 2.55 (0.2)
Distance [pc] 391.88 (34) 402.94 (47) 391.88 391.88 (34)
Composition H
Proper motion (right ascension) [mas/yr] 8.731087973 (0.2) 8.883524726 (0.6) 8.731 (0.2)
Proper motion (declination) [mas/yr] -35.46180479 (0.3) -35.69973581 (0.5) -35.462 (0.3)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.69 (0.03) 19.68 (0.03) 19.69 (0.03)
g magnitude 19.28 (0.01) 19.28 (0.01) 19.30 (0.02)
r magnitude 19.43 (0.01) 19.43 (0.01) 19.43 (0.02)
i magnitude 19.62 (0.02) 19.62 (0.02) 19.62 (0.02)
z magnitude 19.90 (0.08) 19.90 (0.08) 19.91 (0.07)
G magnitude 19.35 (0.03) 19.39 19.35 19.35 (0.004)
BP magnitude 19.43 (0.03) 19.42
RP magnitude 19.48 (0.04) 19.33
Pan g magnitude 19.27 (0.01)
Pan r magnitude 19.45 (0.003)
Pan i magnitude 19.66 (0.01)
Pan z magnitude 19.84 (0.03)
Pan y magnitude 19.87 (0.05)
E(B-V) 0.026

* 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.