| Alpha Circini
|
|
| Die ligging van Alpha Circini (in die rooi sirkel).
|
| Sterrebeeld |
Passer
|
| Spektraaltipe |
A7 Vp SrCrEu[1]
|
| Soort |
Hoofreeksster
|
| Waarnemingsdata (Epog J2000)
|
| Regte klimming |
14h 42m 30.41958s[2]
|
| Deklinasie |
-64° 58′ 30.4934″[2]
|
| Skynmagnitude (m) |
3,18-3,21[3]
|
| Absolute magnitude (M) |
+2,18[4]
|
| B-V-kleurindeks |
+0,24[5]
|
| U-B-kleurindeks |
+0,12[5]
|
| Besonderhede
|
| Massa (M☉) |
1,5-1,7[6]
|
| Radius (R☉) |
1,967 ± 0,066[7]
|
| Ligsterkte (L☉) |
10,51 ± 0,60[6]
|
| Ouderdom (jaar) |
~12 miljoen[8]
|
| Temperatuur (K) |
7 500[6]
|
| Rotasiespoed (km/s) |
13,0 ± 1,5[9]
|
| Metaalinhoud [Fe/H] |
0,13[10]
|
| Eienskappe
|
| Veranderlikheid |
Kortperiode-Ap-veranderlike[3]
|
| Ander name
|
| 17. G Circini,[11] CD−64° 86, HD 128898, HIP 71908, HR 5463, SAO 252853
|
|
|
Alpha Circini (afgekort as α Cir) is ’n veranderlike ster in die dowwe suidelike sirkumpolêre sterrebeeld Passer (Circinus). Met ’n skynbare magnitude van 3,19[5] is dit die helderste ster in die sterrebeeld en kan dit geredelik met die blote oog gesien word. Dit is sowat 54 ligjare van die Son af.[2]
- ↑ Verwysingfout: Invalid
<ref> tag; no text was provided for refs named aj132_1_161
- ↑ 2,0 2,1 2,2 Verwysingfout: Invalid
<ref> tag; no text was provided for refs named aaa474_2_653
- ↑ 3,0 3,1 Verwysingfout: Invalid
<ref> tag; no text was provided for refs named gcvs
- ↑ Verwysingfout: Invalid
<ref> tag; no text was provided for refs named vonEiff2012
- ↑ 5,0 5,1 5,2 Verwysingfout: Invalid
<ref> tag; no text was provided for refs named clpl4_99
- ↑ 6,0 6,1 6,2 Verwysingfout: Invalid
<ref> tag; no text was provided for refs named aaa499_3_851
- ↑ Verwysingfout: Invalid
<ref> tag; no text was provided for refs named mnras386_4_2039
- ↑ Verwysingfout: Invalid
<ref> tag; no text was provided for refs named aj140_3_713
- ↑ Verwysingfout: Invalid
<ref> tag; no text was provided for refs named mnras396_2_1189
- ↑ Verwysingfout: Invalid
<ref> tag; no text was provided for refs named aaa281_3_775
- ↑ Verwysingfout: Invalid
<ref> tag; no text was provided for refs named Gould1879
