We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
A Complete Guide to the Solar System and the Night Sky
Help keep this site free and ads-free: donate now!
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 5:39  
clear_day Transit: 12:56  
SunsetSet: 20:14
sunny DaytimeWhat's Visible Now?
Near Earth Objects » 

Asteroid (NEO) 2021 BB

Altitude: 43.5°   Azimuth: 167.3°   Direction: South-South-East

Asteroid (NEO) 2021 BB is currently in the constellation of Pisces, at a distance of 231,278,315 kilometers from Earth.

Finder chart of 2021 BB in Pisces on April,27 2024
Map showing Asteroid (NEO) 2021 BB in Pisces on April, 27 2024. Field of view: 50x30 degrees
View interactive star map
The current Right Ascension of Asteroid (NEO) 2021 BB is 00h 27m 04s and the Declination is +05° 39’ 31” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom edit_location_alt). The current magnitude of Asteroid (NEO) 2021 BB is 30.02 (JPL).

00h 27m 04s
+05° 39’ 31”
Pisces
30.02

Today's rise, transit and set times of Asteroid (NEO) 2021 BB from Greenwich, United Kingdom edit_location_alt (all times relative to the local timezone Europe/London):

Azimuth: 84.5°
Max altitude: 44.2°
Azimuth: 275.8°
  • 2021 BB is above the horizon from Greenwich, United Kingdom edit_location_alt.
  • Right now it is placed in the South-South-East direction at an altitude of 44° above the horizon.
  • Given its current magnitude, 2021 BB is visible only through long exposure photography.
  • Go to interactive sky chart

If you need to access this information frequently for your observations, you can create a simple customized Quick Access page, so that you can easily bookmark it in your browser favorites or add a shortcut to your mobile phones' home screen.

Additional Resources

Asteroid (NEO) 2021 BB Position and Finder Charts

Finder chart of 2021 BB
Map showing Asteroid (NEO) 2021 BB in Pisces on April, 27 2024
Field of view: 10x6 degrees
View fullscreen

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.

Asteroid (NEO) 2021 BB Distance from Earth

The distance of Asteroid (NEO) 2021 BB from Earth is currently 231,278,315 kilometers, equivalent to 1.546000 Astronomical Units. Light takes 12 minutes and 51.4614 seconds to travel from Asteroid (NEO) 2021 BB and arrive to us.

231,278,315
1.546000
12 minutes and 51.4614 seconds

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.

Chart of the distance of Asteroid (NEO) 2021 BB from Earth in Astronomical Units (au)

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 of Asteroid (NEO) 2021 BB to Earth

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:

Mon Jan 14 2030
1,795,775
0.012004

Asteroid (NEO) 2021 BB Brightness and 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.

Chart of the magnitude of Asteroid (NEO) 2021 BB as a function of time

Asteroid (NEO) 2021 BB 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

Visualization of Asteroid (NEO) 2021 BB Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Asteroid (NEO) 2021 BB with respect of the Sun and the orbits of the major planets. The position of Asteroid (NEO) 2021 BB and the planets along their orbits in this diagram accurately represents the current configuration of the objects in the Solar System. This is an experimental feature and it requires a WebGL enabled browser. Please provide us feedback!

Orbit Diagram of Asteroid (NEO) 2021 BB
View Asteroid (NEO) 2021 BB in the 3D Solar System Simulator

Asteroid (NEO) 2021 BB 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. Click on each row of the table to locate Asteroid (NEO) 2021 BB in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2024 Apr 20 23h 56m 12s +01° 39’ 26” 30.05 Pisces
2024 Apr 21 00h 00m 21s +02° 12’ 15” 30.04 Pisces
2024 Apr 22 00h 04m 31s +02° 45’ 00” 30.04 Pisces
2024 Apr 23 00h 08m 41s +03° 17’ 39” 30.04 Pisces
2024 Apr 24 00h 12m 51s +03° 50’ 11” 30.03 Pisces
2024 Apr 25 00h 17m 03s +04° 22’ 36” 30.03 Pisces
2024 Apr 26 00h 21m 14s +04° 54’ 52” 30.03 Pisces
2024 Apr 27 00h 25m 24s +05° 27’ 01” 30.02 Pisces
2024 Apr 28 00h 29m 36s +05° 58’ 59” 30.02 Pisces
2024 Apr 29 00h 33m 48s +06° 30’ 47” 30.02 Pisces
2024 Apr 30 00h 38m 02s +07° 02’ 25” 30.02 Pisces
2024 May 01 00h 42m 15s +07° 33’ 50” 30.01 Pisces
2024 May 02 00h 46m 28s +08° 05’ 03” 30.01 Pisces
2024 May 03 00h 50m 43s +08° 36’ 02” 30.01 Pisces