Asteroid (NEO) 2021 BB
Asteroid (NEO) 2021 BB is in the constellation of
Libra,
at a distance of
Finder Charts
View interactive star map
Also check out Where is Asteroid (NEO) 2021 BB?, a page that provides all the information needed to find Asteroid (NEO) 2021 BB in the sky and additional links to sky charts.
Celestial Coordinates
Apparent
J2000
Additional Information
Rise and Set Times
Today's rise,
transit and set times of
Asteroid (NEO) 2021 BB from
Greenwich, UK (all times relative to the local timezone Europe/London):
Azimuth: 112.8°
Max altitude: 15.7°
Azimuth: 247.1°
- 2021 BB is
below the horizon from Greenwich, UK.
- Given its current magnitude, 2021 BB is visible only through long exposure photography.
- Go to interactive sky chart
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Distance from Earth
- 2021 BB is below the horizon from Greenwich, UK.
- Given its current magnitude, 2021 BB is visible only through long exposure photography.
- Go to interactive sky chart
The distance of Asteroid (NEO) 2021 BB from Earth is currently
The following chart shows the distance of Asteroid (NEO) 2021 BB from Earth as a function of time. In the chart the distance data is measured in Astronomical Units and sampled with an interval of 1 day.
The value of the reported distance might be somewhat inaccurate around the times of closest approach for objects passing extremely close to Earth.
Closest Approach
During the next 10 years, the closest approach of Asteroid (NEO) 2021 BB to Earth happens on Mon Jan 14 2030 at a distance of 0.012004 Astronomical Units, or 1,795,775 kilometers:
Light Curve
The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid (NEO) 2021 BB, according to the most recent ephemerides data. Magnitude data is sampled with a 2 days interval and there might be inaccuracies for objects changing brightness very rapidly during the course of a few days. For comets there could be large discrepancies between the observed and predicted brightness because of their highly dynamic behaviour.
Orbital Elements
The following table lists the orbital elements of Asteroid (NEO) 2021 BB at epoch 12 September 2023 00:00 UTC (JD: 2460200.5). Source: JPL Small-Body Database
| Element | Symbol | Value |
|---|---|---|
| Orbit eccentricity | e | 0.11901333 |
| Orbit inclination | i | 8.04586423° |
| Perihelion distance | q | 0.82127465 AU 122,860,939 km |
| Aphelion distance | Q |
1.04316821 AU 156,055,743 km |
| Semi-major axis | a |
0.93222143 AU 139,458,341 km |
| Orbital period | period |
0.9001 years 328.7585 days |
| Date of perihelion transit | Tp | 2023-Jun-14 00:39:20 2,460,109.5273 JD |
| Next perihelion transit | 2024-May-07 18:51 2,460,438.2859 JD |
|
| Argument of perihelion | peri | 50.535626940195° |
| Longitude of the ascending node | node | 296.50696196822° |
| Mean anomaly | M | 99.617681152564° |
| Mean motion | n | 1.09502857°/day |
Orbit Visualization
View Asteroid (NEO) 2021 BB in the 3D Solar System Simulator
15 Days Ephemeris
The following table lists the ephemerides of Asteroid (NEO) 2021 BB computed for the past and next 7 days, with a 24 hours interval. Apparent celestial coordinates are provided.
| Date | Right AscensionR.A. | DeclinationDec. | MagnitudeMag | Constellation |
|---|---|---|---|---|
| 2024 Nov 30 | 14h 48m 59s | -20° 51’ 06” | 30.45 | Libra |
| 2024 Dec 01 | 14h 53m 00s | -21° 08’ 24” | 30.45 | Libra |
| 2024 Dec 02 | 14h 57m 02s | -21° 25’ 23” | 30.45 | Libra |
| 2024 Dec 03 | 15h 01m 06s | -21° 42’ 02” | 30.44 | Libra |
| 2024 Dec 04 | 15h 05m 10s | -21° 58’ 20” | 30.44 | Libra |
| 2024 Dec 05 | 15h 09m 16s | -22° 14’ 18” | 30.44 | Libra |
| 2024 Dec 06 | 15h 13m 24s | -22° 29’ 54” | 30.43 | Libra |
| 2024 Dec 07 | 15h 17m 33s | -22° 45’ 08” | 30.43 | Libra |
| 2024 Dec 08 | 15h 21m 43s | -23° 00’ 00” | 30.42 | Libra |
| 2024 Dec 09 | 15h 25m 54s | -23° 14’ 29” | 30.42 | Libra |
| 2024 Dec 10 | 15h 30m 08s | -23° 28’ 35” | 30.42 | Libra |
| 2024 Dec 11 | 15h 34m 22s | -23° 42’ 17” | 30.41 | Libra |
| 2024 Dec 12 | 15h 38m 37s | -23° 55’ 34” | 30.41 | Libra |
| 2024 Dec 13 | 15h 42m 55s | -24° 08’ 26” | 30.40 | Libra |
Additional Resources
- Position and finder charts (see also Where is Asteroid (NEO) 2021 BB?)
- Distance from Earth (see also How far is Asteroid (NEO) 2021 BB from Earth?)
- When does Asteroid (NEO) 2021 BB rise and set?
- Brightness (see also How bright is Asteroid (NEO) 2021 BB?)
- Orbital elements. Detailed information about Asteroid (NEO) 2021 BB orbital parameters.
- Interactive orbit visualization. 3d visualization showing the orbit of Asteroid (NEO) 2021 BB with respect to the major Solar System objects.
- 15 days ephemerides. Table showing celestial coordinates and magnitude of Asteroid (NEO) 2021 BB for the past and next 7 days.
- Interactive sky chart. An online planetarium application that shows where to locate Asteroid (NEO) 2021 BB in the sky from your location.