Related systems

New Ongoing Finished Rejected

GAIA catalog

SPEC catalog

Summary

Basic Data

Name: PG1643+209
Coordinates: 16:45:25.28 (h:m:s) +20:51:32.30 (°:':'')
251.3553 (°) +20.8590 (°)
Classification: sdB
Class. type: Photometric
Observing Status: New

Parameters

visibility
Parameter Value.
M_G (mag) 4.5 ± 0.23
parallax () 0.468 ± 0.036

Notes

Aliases

Tags

Loading...

visibility

Observations

Photometric observations: 20, Reduced spectroscopic observations: 2, Spectroscopic raw files: 0, Light curves: 0

Photometric observations

Stilism Reddening Map (Lallement+2018)

Photometry content_copy

Band Value Error Unit
GAIA3.BP 15.703 0.003 mag
GAIA3.G 15.816 0.003 mag
GAIA3.RP 16.037 0.005 mag
GALEX.FUV 14.943 0.019 mag
GALEX.NUV 15.164 0.006 mag
SDSS.U 15.470 0.005 mag
APASS.B 15.502 0.050 mag
APASS.G 15.670 0.020 mag
SDSS.G 15.571 0.003 mag
GAIA2.BP 15.640 0.007 mag
APASS.V 15.897 0.050 mag
APASS.R 16.092 0.050 mag
SDSS.R 16.030 0.004 mag
GAIA2.G 15.834 0.001 mag
SDSS.I 16.339 0.005 mag
GAIA2.RP 16.035 0.005 mag
SDSS.Z 16.648 0.009 mag
2MASS.J 16.396 0.127 mag
2MASS.H 16.460 0.275 mag
2MASS.K < 15.759 / mag

Spectroscopic observations

Reduced spectra

HJD Date Instrument Resolution Exp time (s) SNR Range (Å)
2455447.500 2010-09-08 BOSS @ SDSS 2.5-M 1900 5405.0 NA 3590 - 10387
2455684.500 2011-05-03 BOSS @ SDSS 2.5-M 1900 4504.0 NA 3591 - 10385
Parameter AVG Gaia DR2 Gaia DR3
System
absolute_g_mag (mag) 3.9 ± 0.1 / 3.9 ± 0.1
M_G (mag) 4.5 ± 0.23 4.5 ± 0.23 /
parallax (mas) 0.468 ± 0.036 0.542 ± 0.059 0.414 ± 0.043
pmdec (mas) 0.819 ± 0.055 0.69 ± 0.1 0.868 ± 0.04
pmra (mas) -5.644 ± 0.043 -5.659 ± 0.079 -5.638 ± 0.035
Primary
Secondary
content_copy