Rho Aquilae

from Wikipedia, the free encyclopedia
Star
ρ Aquilae
AladinLite
Observation
dates equinox :  J2000.0 , epoch : J2000.0
Constellation dolphin
Right ascension 20 h 14 m 16.62 s
declination + 15 ° 11 ′ 51.4 ″
Apparent brightness 4.94 mag
Typing
B − V color index +0.08 
U − B color index +0.01 
R − I index +0.00 
Spectral class A2 V
Astrometry
Radial velocity (−23.0 ± 2.8) km / s
parallax (21.75 ± 0.26)  mas
distance (150.0 ± 1.8)  ly
(45.98 ± 0.55)  pc  
Visual absolute brightness M vis +1.63 mag
Proper movement 
Rec. Share: (55.03 ± 0.22)  mas / a
Dec. portion: (58.14 ± 0.24)  mas / a
Physical Properties
Other names
and catalog entries
Bayer name ρ Aquilae
Flamsteed name 67 Aquilae
Bonn survey BD + 14 ° 4227
Bright Star Catalog HR 7724 [1]
Henry Draper Catalog HD 192425 [2]
Hipparcos catalog HIP 99742 [3]
SAO catalog SAO 105878 [4]
Tycho catalog TYC 1618-2331-1 [5]Template: Infobox star / maintenance / specification of the TYC catalog
Other names FK5 1526
annotation
  1. ↑ Calculated from apparent brightness and distance.

ρ Aquilae (Rho Aquilae) is a +4.95  mag bright star of the spectral type A2 V. The star was in the constellation of eagle (lat. Aquila) until 1992 . In 1992, due to its own movement , ρ Aquilae crossed the border to the dolphin constellation , so that it is one of the few stars that are no longer in the constellation in which one would assume based on the Bayer designation .

Rho Aquilae is approximately 154 light years from Earth. Its absolute brightness is approx. +1.58 mag.

Individual evidence

  1. ↑ a b c Hipparcos catalog (ESA 1997)
  2. ↑ a b c Bright Star Catalog
  3. ↑ Pulkovo radial velocities for 35493 HIP stars
  4. ↑ a b c Hipparcos, the New Reduction (van Leeuwen, 2007)
  5. ↑ SAO / NASA Astrophysics Data System (ADS) ( Memento from December 14, 2012 in the web archive archive.today )