23340+3120 BU  720 (72 Peg)

 
 
23H 33M 57.19S +31 19' 31.0" SEP 0.57 P.A. 104 MAG 5.67,6.11 SP K4IIIB DIST. 168.35 PC (549.16 L.Y.)
 
 
Coord 2000
23340+3120
Discov num
BU  720
Comp
Coord arcsec 2000
23 33 57.19 +31 19 31.0
Date first
1878
Date last
2011
Obs
428
Sep first
0.4
Sep last
0.6
Sep. Now (ρ)
0.57"
Pa first
309
Pa last
102
P.A. Now (θ)
104°
Mag pri
5.67
Mag sec
6.11
delta mag (ΔM)
0.44
Spectral class
K4IIIb (yellow-orange)
Pri motion ra
+049
Sec motion ra
+049
Pri motion dec
-017
Sec motion dec
-017
Notes
N O (See Notes, Orbital solution)
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name
72 Peg
Constellation
Pegasus
SAO
73341
HIP
116310
Tycho2
2766-01925-1
HD
221673
HR
8943
GC
-32764
ADS
16836
BD
BD+30 4978
Flamsteed
72 Peg
Distance
168.35
Distance ly
549.16
 
 
ORBITAL ELEMENTS
 
 
Period (P)492.31y± 75.96 Periastron (T)1904.92y± 10.015 Semi-major axis (a)0.568a± 0.065
Eccentricity (e)0.322± 0.047 Inclination (i)21.7°± 8.3 Longitude of periastron (ω)293°± 15
Node (Ω)56.2°± 6 Note Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2008
label rho theta
2000 0.546 94.0
2001 0.547 94.7
2002 0.549 95.4
2003 0.551 96.1
2004 0.553 96.7
2005 0.554 97.4
2006 0.556 98.1
2007 0.558 98.8
2008 0.560 99.4
2009 0.561 100.1
2010 0.563 100.7
2011 0.565 101.4
2012 0.566 102.0
2013 0.568 102.7
2014 0.570 103.3
2015 0.571 104.0
2016 0.573 104.6
2017 0.575 105.2
2018 0.576 105.9
2019 0.578 106.5
2020 0.580 107.1
2021 0.581 107.7
2022 0.583 108.3
2023 0.584 108.9
2024 0.586 109.5
2025 0.587 110.1
2026 0.589 110.7
2027 0.591 111.3
2028 0.592 111.9
2029 0.594 112.5
2030 0.595 113.1

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

grafico orbita





grafico misure orbit6