SDSS J004407.85-004833.4
All names: Gaia EDR3 2530907954178642816, SDSS J004407.85-004833.4, Gaia DR2 2530907954178642816, GALEX J004407.7-004832, SDSS J004407.85-004833.3, Gaia DR3 2530907954178642816
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 00 44 07.86 (0.4) | 00 44 07.86 | 00 44 07.86 (0.7) | 00 44 07.86 (0.4) | 00 44 07.85 | ||||
| Declination | -00 48 33.59 (0.3) | -00 48 33.39 | -00 48 33.59 (0.6) | -00 48 33.43 (0.3) | -00 48 33.41 | ||||
| Spectral type | DA | DA | DA | DA | |||||
| Effective temperature | [K] | 10671.0 | 15570.0 (678) | ||||||
| log(g) | [cgs] | 7.81 | 7.58 (0.2) | ||||||
| Mass | [M☉] | 0.499 | |||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | 0.4055 | |||||||
| 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] | 2.23 (0.5) | 2.60 (0.7) | 2.23 (0.5) | |||||
| Distance | [pc] | 448.06 (109) | 384.88 (110) | 448.07 (109) | |||||
| Composition | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | 1.884540216 (0.7) | 2.382590773 (1) | 1.885 (0.7) | |||||
| Proper motion (declination) | [mas/yr] | -10.1435715 (0.7) | -9.796207551 (1) | -10.144 (0.7) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 19.99 (0.04) | 19.98 (0.04) | 20.15 (0.07) | ||||||
| g magnitude | 19.60 (0.01) | 19.60 (0.01) | 19.84 (0.04) | ||||||
| r magnitude | 19.73 (0.02) | 19.73 (0.02) | 20.07 (0.03) | ||||||
| i magnitude | 19.85 (0.03) | 19.85 (0.03) | 20.29 (0.04) | ||||||
| z magnitude | 20.13 (0.1) | 20.12 (0.1) | 20.52 (0.2) | ||||||
| G magnitude | 19.96 (0.05) | 20.03 | 19.96 (0.005) | ||||||
| BP magnitude | 20.02 (0.05) | 19.82 | |||||||
| RP magnitude | 20.08 (0.09) | 19.67 | |||||||
| Pan g magnitude | |||||||||
| Pan r magnitude | |||||||||
| Pan i magnitude | |||||||||
| Pan z magnitude | |||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.025 | ||||||||
* 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
