Ton 27

All names: GEN# +6.10070027, Ton 27, UBV M 43108, SDSS J100222.50+292754.9, SDSS J100222.49+292754.9, CBS 18, GALEX J100222.5+292755, CHSS 720, Gaia DR2 743765259084593152, PG 0959+297, SDSS J100222.50+292755.0, Gaia EDR3 743765259084593152, WD 0959+297, Gaia DR3 743765259084593152

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Bedard et al. 2020 Gaia DR2 Stilism Gianninas et al. 2011 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 10 02 22.49 (0.06) 10 02 22.50 10 02 22.49 (0.09) 10 02 22.49 10 02 22.52 (0.06) 10 02 22.58 10 02 22.50
Declination 29 27 54.86 (0.06) 29 27 54.99 29 27 54.86 (0.1) 29 27 54.86 29 27 54.94 (0.06) 29 28 06.24 29 27 55.02
Spectral type DA DA DA DA.8 DA DA DA
Effective temperature [K] 60783.0 (1047) 65330.0 (2155) 142145.0 (22133) 70293.0 (1373)
log(g) [cgs] 7.65 (0.05) 7.90 (0.1) 8.74 (1) 7.63 (0.07)
Mass [M] 0.57 (0.02) 0.68 (0.05) 3.21 (3) 0.588 (0.03)
log(Luminosity) [L] 0.63 (0.05)
Cooling age [Gyr] 0.0010 (0.0001)
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] 2.63 (0.07) 2.29 (0.1) 2.63 2.63 (0.07)
Distance [pc] 380.66 (10) 436.57 (23) 181.00 380.66 380.66 (10)
Composition H H
Proper motion (right ascension) [mas/yr] -20.69321076 (0.07) -20.57035971 (0.2) -20.693 (0.07)
Proper motion (declination) [mas/yr] -5.304837784 (0.08) -5.512342576 (0.2) -5.305 (0.08)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.10
V magnitude 16.43
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 15.65 (0.005) 15.65 (0.005) 15.67 15.71 (0.01)
g magnitude 16.09 (0.004) 16.09 (0.004) 16.13 16.14 (0.01)
r magnitude 16.65 (0.004) 16.65 (0.004) 16.66 (0.02)
i magnitude 17.01 (0.006) 17.01 (0.006) 17.01 (0.02)
z magnitude 17.34 (0.01) 17.34 (0.01) 17.35 (0.02)
G magnitude 16.38 (0.003) 16.40 16.38 16.38 (0.003)
BP magnitude 16.21 (0.003) 16.14
RP magnitude 16.71 (0.006) 16.70
Pan g magnitude 16.19 (0.003)
Pan r magnitude 16.66 (0.002)
Pan i magnitude 17.04 (0.003)
Pan z magnitude 17.34 (0.003)
Pan y magnitude 17.55 (0.009)
E(B-V) 0.019

* 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.