All names: Kepler2M1931+4324, PN G075.9+11.6, KIC 7755741, Gaia DR3 2125896008500236928, Gaia DR3 2125895669204184832, Gaia DR2 2125895669204184832, KOI-6913, UCAC4 668-077022, TIC 63373833, WISE J193108.90+432457.9, WISEA J193108.89+432457.9, LAMOST J193108.88+432457.7, Gaia EDR3 2125896008500236928, 2MASS J19310888+4324577, NAME PN AMU 1
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Vincent et al. 2024 | Simbad |
|---|---|---|---|---|---|---|
| Right ascension | 19 31 02.48 (0.2) | 19 31 08.90 | 19 31 02.48 | 19 31 08.88 (0.02) | ||
| Declination | 43 24 19.00 (0.2) | 43 24 58.00 | 43 24 19.00 | 43 24 57.69 (0.03) | ||
| Spectral type | sdO | DA | O(H)3Vz | |||
| Effective temperature | [K] | 66880.0 (11150) | 18145.0 (1987) | |||
| log(g) | [cgs] | 5.15 (0.03) | 7.99 (0.1) | |||
| Mass | [M☉] | 0.616 (0.1) | ||||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | 2.29 (0.2) | 0.65 (0.04) | 2.29 | 0.63 (0.03) | |
| Distance | [pc] | 436.97 (38) | 1544.88 (93) | 436.98 | 1587.05 (66) | |
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | 4.065 (0.2) | 0.014 (0.07) | -0.138 (0.03) | ||
| Proper motion (declination) | [mas/yr] | 17.623 (0.2) | -2.091 (0.07) | -2.062 (0.03) | ||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | 13.39 (0.07) | |||||
| V magnitude | 13.64 (0.02) | |||||
| R magnitude | 13.83 (0.09) | |||||
| I magnitude | ||||||
| J magnitude | 14.22 (0.03) | 14.22 (0.03) | ||||
| H magnitude | 14.26 (0.05) | 14.26 (0.05) | ||||
| K magnitude | 14.47 (0.1) | 14.47 (0.1) | ||||
| u magnitude | ||||||
| g magnitude | 13.36 (0.04) | |||||
| r magnitude | 13.90 (0.08) | |||||
| i magnitude | 14.20 (0.06) | |||||
| z magnitude | ||||||
| G magnitude | 19.20 (0.004) | 13.59 (0.0006) | 19.20 | 13.57 (0.003) | ||
| BP magnitude | 19.17 (0.03) | 13.37 (0.008) | ||||
| RP magnitude | 19.33 (0.05) | 13.83 (0.002) | ||||
| Pan g magnitude | 13.45 (0.002) | |||||
| Pan r magnitude | 13.83 (0.004) | |||||
| Pan i magnitude | 14.19 (0.01) | |||||
| Pan z magnitude | 14.44 (0.004) | |||||
| Pan y magnitude | 14.61 (0.002) | |||||
| E(B-V) | 0.075 | |||||
* Constant surface field
Spectra without link are available upon request
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.