HD 197488

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HD 197488 / BD +45°3245B^[1][2]

Observation data Epoch J2000.0
Constellation (pronunciation)	Cygnus
Right ascension	20h 42m 20.3060s / 20h 42m 19.6603s
Declination	+45° 49' 24.450" / 45° 49' 52.970"
Apparent magnitude (V)	7.59 / 10.5
Characteristics
Spectral type	G2V / unknown
U-B color index	+0.09 / unknown
B-V color index	+0.57 / unknown
Astrometry
Radial velocity (Rv)	10.8 / unknown km/s
Proper motion (μ)	RA: -56.03 / -1.90 mas/yr Dec.: -188.36 / -9.10 mas/yr
Parallax (π)	17.96 ± 0.67 mas
Distance	182 ± 7 ly (56 ± 2 pc)
Other designations
HD 197488, BD+45°3233, SAO 49960, HIP 102189, GSC 03574-02567, GSC 03574-03349

BD +45°3245A, also known as HD 197488, and BD +45°3245B form a binary star system in the constellation Cygnus. The brighter component, A, is a 7th magnitude star with a spectral type of G2V, meaning it is approximately the same size, temperature, and color as our Sun. The dimmer component, B, is an 11th magnitude star of an unknown spectral type. The system lies about 182 light years away from Earth.^[1][2] It can be found within 45 arcminutes of the star Deneb.^[3]

[edit] References

1. ^ ^{a b} Simbad Query Result. Simbad. Retrieved on October 13, 2007.
2. ^ ^{a b} Simbad Query Result. Simbad. Retrieved on October 13, 2007.
3. ^ Autostar Suite Astronomer Edition. CD-ROM. Meade, April 2006.