All names: SDSSJ041536.05+253857.11, Gaia EDR3 150610660393771648, GALEX J041536.0+253857, Gaia DR3 150610660393771648, Gaia DR2 150610660393771648, 2MASS J04153610+2538570, SDSS J041536.06+253856.9, SDSS J041536.05+253857.11, SDSS J041536.05+253857.1, TIC 56742534
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Kepler et al. 2016 | Simbad |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 04 15 36.06 (0.05) | 04 15 36.06 | 04 15 36.05 | 04 15 36.06 (0.07) | 04 15 36.06 (0.05) | ||||
| Declination | 25 38 57.03 (0.03) | 25 38 56.98 | 25 38 57.11 | 25 38 57.03 (0.04) | 25 38 57.02 (0.03) | ||||
| Spectral type | He-sdO | He-sdO | sdOHe | ||||||
| Effective temperature | [K] | 64329.0 (1429) | 64329.0 (1429) | ||||||
| log(g) | [cgs] | 6.12 (0.07) | 6.12 (0.07) | ||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.47 (0.05) | 0.64 (0.07) | 0.64 (0.07) | 0.47 (0.05) | ||||
| Distance | [pc] | 2137.34 (243) | 1560.55 (178) | 1560.65 (178) | 2137.21 (243) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -0.308698276 (0.07) | -0.327 (0.1) | -0.327211059 (0.1) | -0.309 (0.07) | ||||
| Proper motion (declination) | [mas/yr] | 0.713619441 (0.05) | 0.767 (0.1) | 0.766706386 (0.1) | 0.714 (0.05) | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.55 (0.1) | 16.55 (0.1) | |||||||
| H magnitude | 16.37 (0.2) | 16.37 (0.2) | |||||||
| K magnitude | 15.97 | ||||||||
| u magnitude | 16.13 (0.006) | 16.14 (0.006) | 16.14 (0.01) | 16.14 (0.006) | |||||
| g magnitude | 16.25 (0.004) | 16.25 (0.004) | 16.27 (0.01) | 16.25 (0.004) | |||||
| r magnitude | 16.44 (0.005) | 16.45 (0.005) | 16.46 (0.01) | 16.45 (0.005) | |||||
| i magnitude | 16.64 (0.005) | 16.64 (0.005) | 16.65 (0.01) | 16.64 (0.005) | |||||
| z magnitude | 16.85 (0.01) | 16.84 (0.01) | 16.83 (0.02) | 16.84 (0.01) | |||||
| G magnitude | 16.33 (0.003) | 16.36 (0.001) | 16.36 | 16.33 (0.003) | |||||
| BP magnitude | 16.31 (0.003) | 16.26 (0.007) | 16.26 | ||||||
| RP magnitude | 16.35 (0.005) | 16.34 (0.006) | 16.34 | ||||||
| Pan g magnitude | 16.30 (0.008) | 16.30 (0.008) | |||||||
| Pan r magnitude | 16.47 (0.004) | 16.47 (0.004) | |||||||
| Pan i magnitude | 16.68 (0.003) | 16.68 (0.003) | |||||||
| Pan z magnitude | 16.86 (0.009) | 16.86 (0.009) | |||||||
| Pan y magnitude | 17.01 (0.005) | 17.01 (0.005) | |||||||
| E(B-V) | 0.339 | ||||||||
* 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.