16035-5747 SEE 258 AB
16h 03m 32.22s -57° 46' 29.5" P.A. 327.00 sep 0.3 mag 5.20,5.76 Sp A7IV dist. 39.39 pc (128.49 l.y.)
Coord 2000 |
16035-5747 |
|
Discov num |
SEE 258 |
|
Comp |
AB |
|
Coord arcsec 2000 |
16 03 32.22 -57 46 29.5 |
|
Date first |
1897 |
|
Date last |
2021 |
|
Obs |
123 |
|
Pa first |
266 |
|
Pa last |
326.5 |
|
P.A. Now (θ) |
312.8° |
|
Sep first |
0.8 |
|
Sep last |
0.291 |
|
Sep. Now (ρ) |
0.35" |
|
Mag pri |
5.20 |
|
Mag sec |
5.76 |
|
delta mag (ΔM) |
0.56 |
|
Spectral class |
A7IV (white) |
|
Pri motion ra |
-157 |
|
Sec motion ra |
-157 |
|
Pri motion dec |
-095 |
|
Sec motion dec |
-095 |
|
Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
16035-5747 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
243279 |
16 03 32 -57 46 30 |
SEE 258 AB |
2021 |
123 |
327 |
0.3 |
5.20 |
5.76 |
0.56 |
Y |
<=== |
Show |
Iot1 Nor |
243279 |
16 03 32 -57 46 30 |
HJ 4825 AB,C |
2019 |
43 |
242 |
11.0 |
4.64 |
8.02 |
3.38 |
|
|
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Norma |
|
SAO |
243279 |
|
HIP |
78662 |
|
Tycho2 |
8718-02860-1 |
|
HD |
143474 |
|
HR |
5961 |
|
GC |
21535 |
|
CP |
CP-57 7500 |
|
Bayer |
Iota 1 Normae |
|
Bayer name |
Iot1 Nor |
|
Distance |
39.39 |
|
Distance ly |
128.49 |
|
Bayer greek |
ι1 Nor |
|
ORBITAL ELEMENTS
Period (P) | 26.84y | ± 0.09 |
Periastron (T) | 1990.87y | ± 0.21 |
Semi-major axis (a) | 0.328a | ± 0.006 |
Eccentricity (e) | 0.515 | ± 0.012 |
Inclination (i) | 168.7° | ± 9.9 |
Longitude of periastron (ω) | 320° | ± 44.1 |
Node (Ω) | 42° | ± 43.2 |
Notes | n | |
Reference | Tok2015c | |
Equinox | 2000 | |
Last observation | 2014 | |
Grade | 1 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
284.2 |
0.452 |
2001 |
278.5 |
0.468 |
2002 |
273.1 |
0.481 |
2003 |
267.9 |
0.489 |
2004 |
262.9 |
0.493 |
2005 |
257.9 |
0.493 |
2006 |
252.9 |
0.488 |
2007 |
247.7 |
0.480 |
2008 |
242.3 |
0.468 |
2009 |
236.6 |
0.451 |
2010 |
230.3 |
0.429 |
2011 |
223.3 |
0.403 |
2012 |
215.3 |
0.372 |
2013 |
205.5 |
0.335 |
2014 |
193.3 |
0.294 |
2015 |
176.6 |
0.248 |
2016 |
152.2 |
0.201 |
2017 |
115.1 |
0.166 |
2018 |
67.5 |
0.160 |
2019 |
26.0 |
0.187 |
2020 |
357.5 |
0.228 |
2021 |
338.0 |
0.272 |
2022 |
323.8 |
0.313 |
2023 |
312.8 |
0.350 |
2024 |
303.8 |
0.383 |
2025 |
296.1 |
0.412 |
2026 |
289.4 |
0.435 |
2027 |
283.2 |
0.455 |
2028 |
277.6 |
0.471 |
2029 |
272.3 |
0.482 |
2030 |
267.1 |
0.489 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|