V* V1828 Aql

All names: NSVS 14256825, GALEXJ20200+0437, ATO J305.0019+04.6323, Gaia DR2 4245906369913936000, Gaia DR3 4245906369913936000, 2MASS J20200045+0437564, TIC 404635917, USNO-B1.0 0946-00525128, V* V1828 Aql, UCAC2 33483055

Parameter Unit Geier 2020 Stilism Simbad
Right ascension 20 20 00.47 20 20 00.46 (0.03)
Declination 04 37 55.71 04 37 56.52 (0.02)
Spectral type sdB+dM sdOB+dM
Effective temperature [K] 40000.0 (500)
log(g) [cgs] 5.50 (0.05)
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 1.19 (0.06) 1.33 (0.04)
Distance [pc] 838.29 (42) 752.62 (20)
Composition
Proper motion (right ascension) [mas/yr] 8.063 (0.09) 8.026 (0.04)
Proper motion (declination) [mas/yr] 1.133 (0.06) 1.257 (0.03)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 12.90
V magnitude
R magnitude 13.34
I magnitude
J magnitude 13.66 (0.03) 13.66 (0.03)
H magnitude 13.80 (0.03) 13.80 (0.03)
K magnitude 13.95 (0.06) 13.95 (0.06)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 13.25 (0.004) 13.22 (0.004)
BP magnitude 13.06 (0.01)
RP magnitude 13.45 (0.01)
Pan g magnitude 13.08
Pan r magnitude 13.47
Pan i magnitude 13.78 (0.02)
Pan z magnitude 14.13 (0.05)
Pan y magnitude 14.25 (0.02)
E(B-V) 0.086

* Constant surface field

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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.