Related systems

New Ongoing Finished Rejected

GAIA catalog

SPEC catalog

Summary

Basic Data

Name: PG1539+442
Coordinates: 15:40:43.10 (h:m:s) +43:59:50.07 (°:':'')
235.1796 (°) +43.9972 (°)
Classification: He-sdO
Class. type: Photometric
Observing Status: New

Parameters

visibility
Parameter Value.
parallax () 0.211 ± 0.041

Notes

Aliases

Tags

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visibility

Observations

Photometric observations: 17, 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 16.335 0.004 mag
GAIA3.G 16.494 0.003 mag
GAIA3.RP 16.812 0.010 mag
GALEX.FUV 14.818 0.016 mag
GALEX.NUV 15.242 0.012 mag
SDSS.U 15.806 0.005 mag
SDSS.G 16.212 0.004 mag
GAIA2.BP 16.264 0.009 mag
SDSS.R 16.752 0.004 mag
GAIA2.G 16.519 0.002 mag
SDSS.I 17.119 0.005 mag
GAIA2.RP 16.806 0.009 mag
SDSS.Z 17.459 0.014 mag
WISE.W1 17.665 0.122 mag
WISE.W2 < 17.409 / mag
WISE.W3 < 13.002 / mag
WISE.W4 < 9.635 / mag

Spectroscopic observations

Reduced spectra

HJD Date Instrument Resolution Exp time (s) SNR Range (Å)
2452782.892 2003-05-23 SDSS spectrograph @ SDSS 2.5-M 1900 4500.0 NA 3818 - 9183
2456102.500 2012-06-24 BOSS @ SDSS 2.5-M 1900 3603.0 NA 3586 - 10342
Parameter AVG Gaia DR2 Gaia DR3
System
absolute_g_mag (mag) 3.36 ± 0.22 / 3.36 ± 0.22
parallax (mas) 0.211 ± 0.041 0.182 ± 0.062 0.236 ± 0.053
pmdec (mas) -7.997 ± 0.071 -8.01 ± 0.13 -7.99 ± 0.066
pmra (mas) -2.491 ± 0.055 -2.384 ± 0.097 -2.546 ± 0.05
Primary
Secondary
content_copy