WD 0921+547
All names: Gaia EDR3 1023121687342717952, SDSS J092454.58+543422.3, SDSS J092454.58+543422.2, WD 0921+547, Gaia DR2 1023121687342717952, SBSS 0921+547, SDSS J092454.56+543422.2, Gaia DR3 1023121687342717952, SDSS J092454.54+543421.9, GALEX J092454.5+543422
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | MWDD H | Gaia DR2 | Stilism | Tremblay et al. 2011 | Vincent et al. 2024 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 24 54.53 (0.07) | 09 24 54.56 | 09 24 54.54 (0.09) | 09 24 54.53 | 09 24 54.57 (0.07) | 09 24 54.57 | 09 24 54.36 | 09 24 54.58 | |||||||
| Declination | 54 34 21.94 (0.06) | 54 34 22.24 | 54 34 21.95 (0.08) | 54 34 21.94 | 54 34 22.30 (0.06) | 54 34 22.30 | 54 34 21.72 | 54 34 22.30 | |||||||
| Spectral type | DA | DA | DA | DA | DA | DA_auto | DA | DA | DA | ||||||
| Effective temperature | [K] | 30289.0 (146) | 23417.0 | 30450.0 (150) | 28021.0 (961) | 29388.0 (154) | 30198.0 (181) | ||||||||
| log(g) | [cgs] | 7.32 (0.04) | 7.23 | 7.21 (0.03) | 7.23 (0.05) | 7.25 (0.03) | 7.27 (0.03) | ||||||||
| Mass | [M☉] | 0.37 (0.01) | 0.331 | 0.39 (0.01) | 0.349 (0.02) | 0.429 (0.008) | |||||||||
| log(Luminosity) | [L☉] | -0.43 (0.03) | |||||||||||||
| Cooling age | [Gyr] | 0.0014 (0.0005) | 0.0186 | 0.0182 | |||||||||||
| log(H/He) | |||||||||||||||
| log(C/He) | |||||||||||||||
| log(Ca/He) | |||||||||||||||
| log(Ca/H) | |||||||||||||||
| log(C/H) | |||||||||||||||
| log(N/H) | |||||||||||||||
| log(O/H) | |||||||||||||||
| log(Na/H) | |||||||||||||||
| log(Mg/H) | |||||||||||||||
| log(Al/H) | |||||||||||||||
| log(Si/H) | |||||||||||||||
| log(P/H) | |||||||||||||||
| log(S/H) | |||||||||||||||
| log(Sc/H) | |||||||||||||||
| log(Ti/H) | |||||||||||||||
| log(Cr/H) | |||||||||||||||
| log(Mn/H) | |||||||||||||||
| log(Fe/H) | |||||||||||||||
| log(Ni/H) | |||||||||||||||
| Parallax | [mas] | 2.01 (0.09) | 2.32 (0.1) | 2.01 | 2.01 (0.09) | ||||||||||
| Distance | [pc] | 498.00 (23) | 430.46 (24) | 498.00 | 497.98 (23) | ||||||||||
| Composition | H | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -20.42616036 (0.08) | -20.50354748 (0.2) | -20.426 (0.08) | -13.8 | ||||||||||
| Proper motion (declination) | [mas/yr] | -22.60482187 (0.07) | -22.90624236 (0.2) | -22.605 (0.07) | -25.2 | ||||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | |||||||||||||||
| B magnitude | 16.50 | ||||||||||||||
| V magnitude | |||||||||||||||
| R magnitude | |||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | |||||||||||||||
| H magnitude | |||||||||||||||
| K magnitude | |||||||||||||||
| u magnitude | 17.04 (0.008) | 17.04 (0.008) | 17.05 (0.02) | 17.05 | 17.05 (0.02) | ||||||||||
| g magnitude | 17.19 (0.004) | 17.19 (0.004) | 17.18 (0.01) | 17.18 | 17.20 (0.01) | ||||||||||
| r magnitude | 17.65 (0.006) | 17.65 (0.006) | 17.65 (0.02) | 17.65 | 17.64 (0.02) | ||||||||||
| i magnitude | 17.98 (0.008) | 17.98 (0.008) | 17.98 (0.01) | 17.98 | 17.99 (0.01) | ||||||||||
| z magnitude | 18.27 (0.03) | 18.27 (0.03) | 18.26 (0.04) | 18.27 | 18.28 (0.03) | ||||||||||
| G magnitude | 17.42 (0.007) | 17.45 | 17.42 | 17.42 (0.003) | |||||||||||
| BP magnitude | 17.32 (0.007) | 17.26 | |||||||||||||
| RP magnitude | 17.68 (0.02) | 17.67 | |||||||||||||
| Pan g magnitude | 17.26 (0.002) | ||||||||||||||
| Pan r magnitude | 17.66 (0.003) | ||||||||||||||
| Pan i magnitude | 17.98 (0.005) | ||||||||||||||
| Pan z magnitude | 18.28 (0.01) | ||||||||||||||
| Pan y magnitude | 18.45 (0.03) | ||||||||||||||
| E(B-V) | 0.026 | ||||||||||||||
* 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
