- DE Boötis
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DE Boötis A/B Observation data
Epoch 2000 Equinox 2000Constellation Boötes Right ascension 14h 53m 23.8s Declination +19° 09' 10.1" Apparent magnitude (V) 6.00 Characteristics Spectral type K2 V/? U−B color index 0.50 B−V color index 0.84 R−I color index 0.42 Astrometry Radial velocity (Rv) -31.0 km/s Proper motion (μ) RA: -442.75 mas/yr
Dec.: 216.84 mas/yrParallax (π) 86.68 ± 0.80 mas Distance 37.6 ± 0.3 ly
(11.5 ± 0.1 pc)Absolute magnitude (MV) 5.68 Details Age (0.7–1.3) × 109[1] years Other designations DE Boötis is a binary star system located thirty-eight light-years away, in the constellation Boötes. The A component is an orange, main sequence (K2 V) star.
References
- ^ Mamajek, Eric E.; Hillenbrand, Lynne A. (November 2008). "Improved Age Estimation for Solar-Type Dwarfs Using Activity-Rotation Diagnostics". The Astrophysical Journal 687 (2): 1264–1293. Bibcode 2008ApJ...687.1264M. doi:10.1086/591785.
External links
Star systems within 30–40 light-years from Earth with brightest member's absolute magnitude of +8.5 or brighter. Zeta Herculis «Rutilicus» (34.8 ± 0.2 ly; 2 stars) • Beta Trianguli Australis (40.2 ± 0.3 ly; 2 stars)‡Gamma Pavonis (30.1 ± 0.2 ly; 1 star)‡ • Beta Virginis «Zavijava» (35.6 ± 0.3 ly; 2 stars) • Gamma Serpentis (36.3 ± 0.3 ly; 1 star) • Theta Persei (36.6 ± 0.3 ly; 2 stars) • Zeta Doradus (38.0 ± 0.2 ly; 1 star) • Iota Pegasi (38.3 ± 0.3 ly; 2 stars) • Gamma Virginis «Porrima» (38.7 ± 0.4 ly; 2 stars) • Zeta Trianguli Australis (39.5 ± 0.3 ly; 2 stars)Beta Comae Berenices (29.9 ± 0.2 ly; 1 star)‡ • Kappa¹ Ceti (29.9 ± 0.2 ly; 1 star)‡ • HR 4523 (30.1 ± 0.2 ly; 2 stars, 1 planet: planet b)‡ • 61 Ursae Majoris (31.1 ± 0.2 ly; 1 star) • Alpha Mensae (33.1 ± 0.2 ly; 1 star) • Iota Persei (34.4 ± 0.3 ly; 1 star) • Delta Trianguli (35.4 ± 0.3 ly; 2 stars) • 11 Leonis Minoris (36.5 ± 0.3 ly; 2 stars) • Lambda Serpentis (38.3 ± 0.4 ly; 1 star) • Zeta Reticuli (39.4 ± 0.3 ly; 2 stars) • 85 Pegasi (39.5 ± 0.4 ly; 3 stars)HR 4458 (31.1 ± 0.2 ly; 2 stars) • Gliese 638 (31.9 ± 0.3 ly; 1 star) • 12 Ophiuchi (31.9 ± 0.3 ly; 1 star) • HR 511 (32.5 ± 0.2 ly; 1 star) • HR 5256 (33.0 ± 0.2 ly; 1 star) • Gliese 453 (33.2 ± 0.3 ly; 1 star) • HR 857 (33.9 ± 0.3 ly; 1 star) • Gliese 688 (34.9 ± 0.5 ly; 1 star) • Gliese 653 (35.1 ± 0.4 ly; 2 stars) • HR 9038 (35.2 ± 0.2 ly; 2 stars) • HR 637 (35.6 ± 0.2 ly; 2 stars, 1 planet: planet b) • HR 6806 (36.2 ± 0.2 ly; 1 star) • 54 Piscium (36.2 ± 0.3 ly; 1 star, 1 brown dwarf, 1 planet: planet b) • Gliese 320 (36.3 ± 0.2 ly; 1 star) • Gliese 370 (36.4 ± 0.3 ly; 1 star, 1 planet: planet b) • Gliese 505 (36.6 ± 0.4 ly; 2 stars) • Gliese 208 (37.1 ± 0.6 ly; 1 star) • Gliese 902 (37.2 ± 0.3 ly; 1 star) • Gliese 169 (37.4 ± 0.5 ly; 1 star) • HR 5553 (37.6 ± 0.4 ly; 2 stars) • Gliese 542 (38.6 ± 0.4 ly; 1 star) • HR 3384 (39.7 ± 0.3 ly; 1 star)‡ • HR 1925 (39.9 ± 0.4 ly; 1 star)‡In left column are stellar classes of primary members of star systems. ‡Distance error margin extends out of declared distance interval. Italic are systems possibly located within declared distance interval, but probably not. Categories:- Main sequence star stubs
- Boötes constellation
- Henry Draper Catalogue objects
- HIP objects
- K-type main sequence stars
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