Back 2744 Birgitta (كويكب) ARZ (2744) Биргитта CE (2744) Birgitta German 2744 Μπιργκίτα Greek 2744 Birgitta Esperanto (2744) Birgitta Spanish 2744 Birgitta Basque سیارک ۲۷۴۴ Persian (2744) Birgitta French 2744 Birgitta Hungarian
| Discovery [1] | |
|---|---|
| Discovered by | C.-I. Lagerkvist |
| Discovery site | Kvistaberg Stn. |
| Discovery date | 4 September 1975 |
| Designations | |
| (2744) Birgitta | |
Named after | Anna Birgitta Angelica Lagerkvist [1] (discoverer's daughter) |
| 1975 RB · 1933 QY | |
| Mars-crosser [1][2][3] | |
| Orbital characteristics [2] | |
| Epoch 23 March 2018 (JD 2458200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 84.41 yr (30,830 d) |
| Aphelion | 3.0670 AU |
| Perihelion | 1.5364 AU |
| 2.3017 AU | |
| Eccentricity | 0.3325 |
| 3.49 yr (1,275 d) | |
| 58.730° | |
| 0° 16m 55.92s / day | |
| Inclination | 6.7428° |
| 315.55° | |
| 44.106° | |
| Physical characteristics | |
| 2.67±0.27 km[4] 3.29 km (calculated)[3] | |
| 8.97±0.08 h[5] 8.994±0.005 h[a] 9.02 h[6] | |
| 0.20 (assumed)[3] 0.304±0.061[4] | |
| Tholen = S [2] SMASS = S [2][3] B–V = 0.909[2] U–B = 0.527[2] | |
| 14.78[2][3][4] 14.84±0.12 (R)[5] 15.12±0.39[7] | |
2744 Birgitta, provisional designation 1975 RB, is a stony asteroid and a Mars-crosser on an eccentric orbit from the innermost regions of the asteroid belt, approximately 3 kilometers (2 miles) in diameter. It was discovered at the Kvistaberg Station of the Uppsala Observatory in Sweden on 4 September 1975, by Swedish astronomer Claes-Ingvar Lagerkvist, who named it after his daughter, Anna Birgitta Angelica Lagerkvist.[1] The S-type asteroid has a rotation period of 9.0 hours.[3]
- ^ a b c d Cite error: The named reference
MPC-objectwas invoked but never defined (see the help page). - ^ a b c d e f g Cite error: The named reference
jpldatawas invoked but never defined (see the help page). - ^ a b c d e f Cite error: The named reference
lcdbwas invoked but never defined (see the help page). - ^ a b c Cite error: The named reference
Ali-Lagoa-2017was invoked but never defined (see the help page). - ^ a b Cite error: The named reference
Chang-2016was invoked but never defined (see the help page). - ^ Cite error: The named reference
Lagerkvist-1976bwas invoked but never defined (see the help page). - ^ Cite error: The named reference
Veres-2015was invoked but never defined (see the help page).
Cite error: There are <ref group=lower-alpha> tags or {{efn}} templates on this page, but the references will not show without a {{reflist|group=lower-alpha}} template or {{notelist}} template (see the help page).