BD+39 3226

All names: GEN# +0.03903226, GSC 03088-02104, BD+393226, Gaia DR3 1344412831954515072, Gaia EDR3 1344412831954515072, HIC 86986, HIP 86986, BD+39 3226, TD1 30882, AG+39 1710, 2MASS J17463191+3919090, Gaia DR2 1344412831954515072, PPM 80567, TYC 3088-2104-1, TIC 116048879

Parameter Unit Gaia EDR3 Geier 2020 Stilism Simbad
Right ascension 17 46 31.94 (0.04) 17 46 31.90 17 46 31.91 (0.04)
Declination 39 19 09.02 (0.04) 39 19 09.09 39 19 09.07 (0.04)
Spectral type He-sdO sdOHe
Effective temperature [K] 44700.0 (5000)
log(g) [cgs] 5.50 (0.5)
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 5.28 (0.04) 5.20 (0.05) 5.28 (0.04)
Distance [pc] 189.24 (2) 192.29 (2) 189.24 (2)
Composition
Proper motion (right ascension) [mas/yr] 19.564 (0.05) 19.398 (0.1) 19.564 (0.05)
Proper motion (declination) [mas/yr] -2.962 (0.05) -2.977 (0.09) -2.962 (0.05)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 9.89
V magnitude 10.18
R magnitude
I magnitude
J magnitude 10.87 (0.02) 10.87 (0.02)
H magnitude 11.02 (0.02) 11.02 (0.02)
K magnitude 11.10 (0.02) 11.10 (0.02)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 10.13 (0.003) 10.14 (0.001) 10.13 (0.003)
BP magnitude 9.97 (0.003) 9.98 (0.002)
RP magnitude 10.45 (0.004) 10.46 (0.001)
Pan g magnitude 9.98
Pan r magnitude 10.46
Pan i magnitude 10.83
Pan z magnitude 11.12
Pan y magnitude 11.37
E(B-V) 0.023

* 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.