21442+0953 S 798 AC (Enif)

 
 
21h 44m 11.14s +09° 52' 30.0" P.A. 318.00 sep 143.9 mag 2.53,8.74 Sp K2Ib+F8 dist. 211.42 pc (689.65 l.y.)
 
 
Coord 2000 21442+0953 Discov num S   798 Comp AC Coord arcsec 2000 21 44 11.14 +09 52 30.0
Date first 1825 Date last 2018 Obs 29
Pa first 323 Pa last 317.7 P.A. Now (θ) 317.7°
Sep first 138.5 Sep last 143.91 Sep. Now (ρ) 143.91"
Mag pri 2.53 Mag sec 8.74 delta mag (ΔM) 6.21 Spectral class K2Ib+F8 (yellow-orange/yellow-white)
Pri motion ra +027 Sec motion ra -035
Pri motion dec +000 Sec motion dec -017
Notes N S (See Notes, Parallax indidates non-physical)
rPM=1.652
This double is not physical.
 
 
21442+0953 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 127029 21 44 11 +09 52 30 S 798 AB 2013 13 323 83.2 2.53 12.80 10.27
Show Enif 127029 21 44 11 +09 52 30 S 798 AC 2018 29 318 143.9 2.53 8.74 6.21 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Common name Enif Constellation Pegasus SAO 127029 HIP 107315
Tycho2 1125-02186-1 Gaia DR2 1765433632573306496 HD 206778 HR 8308
GC 30431 ADS 15268 BD BD+09 4891 Bayer Epsilon Pegasi
Bayer name Eps Peg Flamsteed 8 Pegasi Flamsteed name 8 Peg FK5 815
Distance 211.42 Distance ly 689.65 Bayer greek ε Peg
Other names Enf, ENIR, AL ANF, OS PEGASI, FOM
Meaning muzzle, nose
 
 
WDS 21442+0953 S 798 AC (Enif) : NOTES
 
 
discov_num notes refcode
S 798 eps Peg = 8 Peg = Enif. STTA223 = H 6 103.
The primary is variable.
 
 
REFERENCES
 
 
refcode metd author reference
S__1826 Ma - South, J. 1826RSPT..116....1S
S__1826 Phil. Trans. R. Soc., 116, Pt.1, 1826
S__1844A Ma - South, J. 1844QB43.S66.......
S__1844A cited by Smyth (Cycle of Celestial Objects 2, 1844)
S__1852A Ma - South, J. .
S__1852A cited by Bishop (Bishop Obs. Astron. Observations 1852)
S__1880A Ma - South, J. 1880MNRAS..40..497B
S__1880A cited by Burnham (MNRAS 40, 497, 1880)
S__1906A Ma - South, J. 1906MmRAS..56....1L
S__1906A cited by Lewis (MemRAS 56, 1, 1906)
S__1906B Ma - South, J. 1906QB821.B972.....
S__1906B cited in BDS (Burnham Double Star Cat., 1906)
S__1913A Ma - South, J. 1913QB811.B8.......
S__1913A cited by Burnham (Carnegie Inst. Wash. #168, 1913)
S__1922A Ma - South, J. 1922AN....216...49R
S__1922A cited by Rabe (AN 216, 49, 1922)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21442+0953 S 798 AC 2006 23 321 144.2 2.53 8.74 N D 214411.14+095230.0
21442+0953 S 798 AC 2010 24 317 143.9 2.53 8.74 N D 214411.14+095230.0
21442+0953 S 798 AC 2011 26 314 147.0 2.53 8.74 N D 214411.14+095230.0
21442+0953 S 798 AC 2013 27 318 145.4 2.53 8.74 K2Ib N D 214411.14+095230.0
21442+0953 S 798 AC 2016 28 318 144.6 2.53 8.74 K2Ib N 214411.14+095230.0
21442+0953 S 798 AC 2018 29 318 143.9 2.53 8.74 K2Ib N 214411.14+095230.0

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WDS 21442+0953 S 798 AC (Enif) : VISUAL OBSERVATIONS REPORTS
 
 
Show date username difficulty separation pa_estim interest notes
Show 23/09/24 Diego Vercelli easy separated 320 interesting
Show 13/11/05 gianluca.paone easy separated 327 interesting but to observe in better conditions

 
 
WDS 21442+0953 S 798 AC (Enif) : MEASURES
 
 
No records found.

 
 
WDS 21442+0953 (Enif) : VIRTUAL EYEPIECE
 
 

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WDS 21442+0953 (Enif) : ALADIN DSS IMAGE @
 
 
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.