USNO-A2.0 0900-06398490
All names: USNO-A2.0 0900-06398490, SDSS J092547.59+042248.2, GALEX J092547.5+042248, WD 0923+045, Gaia DR2 3851995020610285568, Gaia DR3 3851995020610285568, Gaia EDR3 3851995020610285568, SDSS J092547.59+042248.1
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | 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 25 47.59 (0.2) | 09 25 47.59 | 09 25 47.59 (0.2) | 09 25 47.59 | 09 25 47.59 (0.2) | 09 25 47.59 | 09 25 47.04 | 09 25 47.59 | ||||||
| Declination | 04 22 48.58 (0.2) | 04 22 48.16 | 04 22 48.57 (0.3) | 04 22 48.58 | 04 22 48.12 (0.2) | 04 22 48.19 | 04 22 41.88 | 04 22 48.18 | ||||||
| Spectral type | DA | DA | DA | DA | DA_auto | DA | DA | DA | ||||||
| Effective temperature | [K] | 10077.0 | 10340.0 (70) | 9845.0 (176) | 10221.0 (48) | 10176.0 (51) | ||||||||
| log(g) | [cgs] | 7.84 | 8.15 (0.06) | 7.92 (0.04) | 8.14 (0.06) | 8.12 (0.06) | ||||||||
| Mass | [M☉] | 0.513 | 0.69 (0.04) | 0.554 (0.03) | 0.669 (0.04) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 0.4877 | 0.6918 | |||||||||||
| 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] | 6.05 (0.2) | 5.65 (0.3) | 6.05 | 6.05 (0.2) | |||||||||
| Distance | [pc] | 165.16 (5) | 176.94 (9) | 165.16 | 165.16 (5) | |||||||||
| Composition | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -4.534473842 (0.2) | -3.323832691 (0.7) | -4.534 (0.2) | -3.6 | |||||||||
| Proper motion (declination) | [mas/yr] | 28.73928639 (0.2) | 27.57308564 (0.9) | 28.739 (0.1) | 36.2 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | 17.60 (0.3) | |||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | 17.80 (0.3) | |||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | 18.17 (0.04) | |||||||||||||
| H magnitude | 18.20 (0.1) | |||||||||||||
| K magnitude | 18.30 (0.2) | |||||||||||||
| u magnitude | 18.58 (0.02) | 18.59 (0.02) | 18.57 (0.02) | 18.57 | 18.58 (0.02) | |||||||||
| g magnitude | 18.15 (0.006) | 18.15 (0.006) | 18.16 (0.02) | 18.15 | 18.16 (0.02) | |||||||||
| r magnitude | 18.25 (0.007) | 18.25 (0.007) | 18.25 (0.01) | 18.25 | 18.25 (0.01) | |||||||||
| i magnitude | 18.38 (0.01) | 18.38 (0.01) | 18.38 (0.01) | 18.38 | 18.38 (0.01) | |||||||||
| z magnitude | 18.52 (0.03) | 18.52 (0.03) | 18.53 (0.03) | 18.53 | 18.54 (0.03) | |||||||||
| G magnitude | 18.16 (0.01) | 18.19 | 18.16 | 18.16 (0.003) | ||||||||||
| BP magnitude | 18.26 (0.01) | 18.22 | ||||||||||||
| RP magnitude | 18.12 (0.02) | 18.10 | ||||||||||||
| Pan g magnitude | 18.15 (0.005) | |||||||||||||
| Pan r magnitude | 18.24 (0.008) | |||||||||||||
| Pan i magnitude | 18.40 (0.004) | |||||||||||||
| Pan z magnitude | 18.58 (0.02) | |||||||||||||
| Pan y magnitude | 18.65 (0.03) | |||||||||||||
| E(B-V) | 0.009 | |||||||||||||
* 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
