PG 1645+610

All names: 2MASS J16454006+6057108, TIC 289536555, GALEX J164540.0+605709, FBS B 745, FBS 1645+610, UCAC4 755-049859, BPS BS 16080-0082, PG1645+610, Gaia DR3 1624385841420963840, Gaia DR2 1624385841420963840, PG 1645+610

Parameter Unit Geier 2020 Stilism Simbad
Right ascension 16 45 40.08 16 45 40.07 (0.04)
Declination 60 57 10.85 60 57 10.77 (0.04)
Spectral type sdB sdB1VIIHe5
Effective temperature [K]
log(g) [cgs]
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 0.69 (0.05) 0.82 (0.04)
Distance [pc] 1447.18 (111) 1220.85 (62)
Composition
Proper motion (right ascension) [mas/yr] 0.197 (0.1) 0.855 (0.05)
Proper motion (declination) [mas/yr] -2.426 (0.1) -3.3 (0.05)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 14.29 (0.05)
V magnitude 14.37 (0.05)
R magnitude 14.61 (0.09)
I magnitude
J magnitude 14.49 (0.04) 14.49 (0.04)
H magnitude 14.29 (0.05) 14.29 (0.05)
K magnitude 14.21 (0.07) 14.21 (0.07)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 14.36 (0.0007) 14.35 (0.003)
BP magnitude 14.23 (0.008)
RP magnitude 14.43 (0.003)
Pan g magnitude 14.26 (0.003)
Pan r magnitude 14.56 (0.004)
Pan i magnitude 14.78 (0.002)
Pan z magnitude 14.94 (0.005)
Pan y magnitude 15.04 (0.004)
E(B-V) 0.022

* 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.