15492-3539 NHR 8 Aa,Ab
15h 49m 12.14s -35° 39' 03.9" P.A. 278.00 sep 0.7 mag 11.40, Sp K7V
Coord 2000 |
15492-3539 |
|
Discov num |
NHR 8 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
15 49 12.14 -35 39 03.9 |
|
Date first |
1994 |
|
Date last |
2012 |
|
Obs |
18 |
|
Pa first |
276 |
|
Pa last |
277.6 |
|
P.A. Now (θ) |
277.6° |
|
Sep first |
0.7 |
|
Sep last |
0.713 |
|
Sep. Now (ρ) |
0.713" |
|
Mag pri |
11.40 |
|
Mag sec |
|
|
delta mag (ΔM) |
|
|
Spectral class |
K7V (yellow-orange) |
|
Pri motion ra |
-014 |
|
Sec motion ra |
|
|
Pri motion dec |
-024 |
|
Sec motion dec |
|
|
Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
15492-3539 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
|
15 49 12 -35 39 04 |
NHR 8 Aa,Ab |
2012 |
18 |
278 |
0.7 |
11.40 |
|
|
Y |
<=== |
Show |
|
|
15 49 12 -35 39 04 |
NHR 8 Aa,B |
2006 |
5 |
42 |
6.4 |
11.40 |
18.50 |
7.10 |
|
|
Show |
|
|
15 49 12 -35 39 04 |
FMR 248 Aa,C |
2016 |
3 |
115 |
16.1 |
11.40 |
18.40 |
7.00 |
|
|
Quadruple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Lupus |
|
Gaia DR2 |
6011522757643074304 |
|
ORBITAL ELEMENTS SOLUTION #1
Period (P) | 1138.3y | |
Periastron (T) | 2433.3y | |
Semi-major axis (a) | 0.69a | |
Eccentricity (e) | 0.21 | |
Inclination (i) | 53.7° | |
Longitude of periastron (ω) | 360° | |
Node (Ω) | 76.5° | |
Notes | n | |
Reference | Gns2014b | |
Equinox | | |
Last observation | 2012 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
274.9 |
0.742 |
2001 |
275.1 |
0.740 |
2002 |
275.2 |
0.739 |
2003 |
275.4 |
0.738 |
2004 |
275.5 |
0.736 |
2005 |
275.7 |
0.735 |
2006 |
275.9 |
0.734 |
2007 |
276.0 |
0.732 |
2008 |
276.2 |
0.731 |
2009 |
276.4 |
0.729 |
2010 |
276.5 |
0.728 |
2011 |
276.7 |
0.727 |
2012 |
276.9 |
0.725 |
2013 |
277.0 |
0.724 |
2014 |
277.2 |
0.722 |
2015 |
277.4 |
0.721 |
2016 |
277.5 |
0.719 |
2017 |
277.7 |
0.718 |
2018 |
277.9 |
0.716 |
2019 |
278.0 |
0.715 |
2020 |
278.2 |
0.714 |
2021 |
278.4 |
0.712 |
2022 |
278.5 |
0.711 |
2023 |
278.7 |
0.709 |
2024 |
278.9 |
0.707 |
2025 |
279.1 |
0.706 |
2026 |
279.2 |
0.704 |
2027 |
279.4 |
0.703 |
2028 |
279.6 |
0.701 |
2029 |
279.8 |
0.700 |
2030 |
279.9 |
0.698 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
ORBITAL ELEMENTS SOLUTION #2
Period (P) | 1734.1y | |
Periastron (T) | 2214.4y | |
Semi-major axis (a) | 0.92a | |
Eccentricity (e) | 0.69 | |
Inclination (i) | 46.4° | |
Longitude of periastron (ω) | 266.7° | |
Node (Ω) | 126.6° | |
Notes | n | |
Reference | Gns2014b | |
Equinox | | |
Last observation | 2012 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
274.5 |
0.744 |
2001 |
274.7 |
0.742 |
2002 |
274.8 |
0.741 |
2003 |
275.0 |
0.740 |
2004 |
275.2 |
0.738 |
2005 |
275.3 |
0.737 |
2006 |
275.5 |
0.735 |
2007 |
275.6 |
0.734 |
2008 |
275.8 |
0.732 |
2009 |
276.0 |
0.731 |
2010 |
276.1 |
0.730 |
2011 |
276.3 |
0.728 |
2012 |
276.5 |
0.727 |
2013 |
276.6 |
0.725 |
2014 |
276.8 |
0.724 |
2015 |
277.0 |
0.722 |
2016 |
277.1 |
0.721 |
2017 |
277.3 |
0.719 |
2018 |
277.5 |
0.718 |
2019 |
277.6 |
0.716 |
2020 |
277.8 |
0.715 |
2021 |
278.0 |
0.713 |
2022 |
278.2 |
0.712 |
2023 |
278.3 |
0.710 |
2024 |
278.5 |
0.709 |
2025 |
278.7 |
0.707 |
2026 |
278.9 |
0.705 |
2027 |
279.0 |
0.704 |
2028 |
279.2 |
0.702 |
2029 |
279.4 |
0.701 |
2030 |
279.6 |
0.699 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
ORBITAL ELEMENTS SOLUTION #3
Period (P) | 786.1y | |
Periastron (T) | 2269.8y | |
Semi-major axis (a) | 0.54a | |
Eccentricity (e) | 0.52 | |
Inclination (i) | 39.6° | |
Longitude of periastron (ω) | 360° | |
Node (Ω) | 77.9° | |
Notes | n | |
Reference | Gns2014b | |
Equinox | | |
Last observation | 2012 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
275.1 |
0.739 |
2001 |
275.3 |
0.738 |
2002 |
275.5 |
0.736 |
2003 |
275.6 |
0.735 |
2004 |
275.8 |
0.734 |
2005 |
276.0 |
0.732 |
2006 |
276.1 |
0.731 |
2007 |
276.3 |
0.730 |
2008 |
276.5 |
0.728 |
2009 |
276.6 |
0.727 |
2010 |
276.8 |
0.725 |
2011 |
277.0 |
0.724 |
2012 |
277.1 |
0.722 |
2013 |
277.3 |
0.721 |
2014 |
277.5 |
0.719 |
2015 |
277.6 |
0.718 |
2016 |
277.8 |
0.716 |
2017 |
278.0 |
0.715 |
2018 |
278.1 |
0.713 |
2019 |
278.3 |
0.712 |
2020 |
278.5 |
0.710 |
2021 |
278.7 |
0.709 |
2022 |
278.8 |
0.707 |
2023 |
279.0 |
0.706 |
2024 |
279.2 |
0.704 |
2025 |
279.4 |
0.702 |
2026 |
279.6 |
0.701 |
2027 |
279.7 |
0.699 |
2028 |
279.9 |
0.697 |
2029 |
280.1 |
0.696 |
2030 |
280.3 |
0.694 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|