V450 Aquilae

V450 Aquilae
	; The visual band light curve of V450 Aquilae, adapted from Percy et al. (2001)
Observation data; Epoch J2000 Equinox J2000
Constellation	Aquila
Right ascension	19h 33m 46.031s
Declination	+05° 27′ 56.54″
Apparent magnitude (V)	6.48
Characteristics
Spectral type	M5-5.5III
B−V color index	1.471
Variable type	Semiregular
Astrometry
Radial velocity (Rv)	3 km/s
Proper motion (μ)	RA: −5.26 ± 0.53 mas/yr ; Dec.: −24.24 ± 0.32 mas/yr
Parallax (π)	4.94 ± 0.47 mas
Distance	660 ± 60 ly ; (200 ± 20 pc)
Absolute magnitude (MV)	−1.87
Details
Luminosity	2172 L☉
Temperature	3326 K
Other designations
	SAO 124789, BD+05° 4190, HD 184313, HIP 96204.
Database references
SIMBAD	data

V450 Aquilae is semi-regular pulsating star in the constellation Aquila. Located around 660 light-years distant, it shines with a luminosity approximately 2,172 times that of the Sun and has a surface temperature of 3,326 K.^[3] The star varies in brightness from magnitude from 6.14 to 6.86,^[4] so when it is at its brightest, it will be faintly visible to the naked eye.

Cuno Hoffmeister announced that V450 Aquilae was a newly discovered variable star in 1935.^[5] Its period is 64.2 days.^[4]

References

^ Percy, John R.; Wilson, Joseph B.; Henry, Gregory W. (August 2001). "Long-Term VRI Photometry of Small-Amplitude Red Variables. I. Light Curves and Periods". Publications of the Astronomical Society of the Pacific. 113 (786): 983–996. Bibcode:2001PASP..113..983P. doi:10.1086/322153. S2CID 14609175.
^ ^a ^b ^c ^d ^e van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600.Vizier catalog entry
^ ^a ^b ^c McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012). "Fundamental Parameters and Infrared Excesses of Hipparcos Stars". Monthly Notices of the Royal Astronomical Society. 427 (1): 343–57. arXiv:1208.2037. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x. S2CID 118665352.
^ ^a ^b "V0450 Aql". The International Variable Star Index. AAVSO. Retrieved 28 October 2024.
^ Hoffmeister, Cuno (June 1935). "162 neue Veräderliche". Astronomische Nachrichten. 255: 401. Bibcode:1935AN....255..401H. doi:10.1002/asna.19352552202. Retrieved 28 October 2024.

This variable star–related article is a stub. You can help Wikipedia by expanding it.

[Percy-1] Percy, John R.; Wilson, Joseph B.; Henry, Gregory W. (August 2001). "Long-Term VRI Photometry of Small-Amplitude Red Variables. I. Light Curves and Periods". Publications of the Astronomical Society of the Pacific. 113 (786): 983–996. Bibcode:2001PASP..113..983P. doi:10.1086/322153. S2CID 14609175.

[van_Leeuwen2007-2] van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600.Vizier catalog entry

[Mcdonald-3] McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012). "Fundamental Parameters and Infrared Excesses of Hipparcos Stars". Monthly Notices of the Royal Astronomical Society. 427 (1): 343–57. arXiv:1208.2037. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x. S2CID 118665352.

[IVSI-4] "V0450 Aql". The International Variable Star Index. AAVSO. Retrieved 28 October 2024.

[Hoffmeister-5] Hoffmeister, Cuno (June 1935). "162 neue Veräderliche". Astronomische Nachrichten. 255: 401. Bibcode:1935AN....255..401H. doi:10.1002/asna.19352552202. Retrieved 28 October 2024.

[1]

[2]

[3]

[4]

[5]