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Asteroid (NEO) 2021 BB

Asteroid (NEO) 2021 BB is a Near Earth Object. If you've heard news about a potential impact of this asteroid with the Earth, please check out Will Asteroid Asteroid (NEO) 2021 BB Impact Earth?.

Asteroid (NEO) 2021 BB is currently in the constellation of Puppis. The current Right Ascension of Asteroid (NEO) 2021 BB is 08h 10m 12s and the Declination is -14° 56’ 44” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current magnitude of Asteroid (NEO) 2021 BB is 28.07 (JPL).

Summary of key facts about Asteroid (NEO) 2021 BB [tip: you can also create a Quick Access page for this data if you access it frequently and would like to have a simpler view]:

08h 10m 12s
-14° 56’ 44”
  • 2021 BB is above the horizon from Greenwich, United Kingdom [change].
  • It is visible looking in the East-South-East direction at an altitude of 2° above the horizon.
  • Given its current magnitude, 2021 BB is visible only through long exposure photography.
  • See also 2021 BB rise and set times.
  • 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 information about Asteroid (NEO) 2021 BB available on TheSkyLive:

Available Resources

Asteroid (NEO) 2021 BB Position and Finder Charts

Below we provide Asteroid (NEO) 2021 BB finder charts showing where the object is right now in the sky with respect to the brightest stars. The first finder chart has a field of view of 50 degrees, while the second one has a field of view of 10 degrees. Click on each finder chart to access a full screen interactive Online Planetarium.

Map showing Asteroid (NEO) 2021 BB in Puppis on May, 16 2021
Field of view: 50x30 degrees
View fullscreen
Map showing Asteroid (NEO) 2021 BB in Puppis on May, 16 2021
Field of view: 10x6 degrees
View fullscreen
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

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 34,939,053 kilometers, equivalent to 0.233553 Astronomical Units. Light takes 1 minutes and 56.5441 seconds to travel from Asteroid (NEO) 2021 BB and arrive to us.

1 minutes and 56.5441 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.

Distance of Asteroid (NEO) 2021 BB from Earth between January 2013 and December 2100

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

Asteroid (NEO) 2021 BB brightness

The current visual magnitude of Asteroid (NEO) 2021 BB is 28.07.


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.

Predicted magnitude of Asteroid (NEO) 2021 BB between January 2013 and December 2100

Asteroid (NEO) 2021 BB rise and set times

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

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

Azimuth: 104.9°
Max altitude: 23.6°
Azimuth: 255.1°

The rise and set times are defined as the time at which the upper limb of Asteroid (NEO) 2021 BB touches the horizon, considering the effect of the atmospheric refraction. As the atmospheric conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.

Asteroid (NEO) 2021 BB Orbital Elements

The following table lists the orbital elements of Asteroid (NEO) 2021 BB at epoch 30 May 2020 00:00 UTC (JD: 2459000.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.12158442
Orbit inclination i 7.92087076°
Perihelion distance q 0.81929537 AU
122,564,844 km
Aphelion distance Q 1.04609816 AU
156,494,058 km
Semi-major axis a 0.93269677 AU
139,529,451 km
Orbital period period 0.9000 years
329.0100 days
Date of perihelion transit Tp 2020-Oct-02 03:03:35
2,459,124.6275 JD
Next perihelion transit 2021-Aug-27 03:18
2,459,453.6375 JD
Argument of perihelion peri 51.516517408633°
Longitude of the ascending node node 296.75727755728°
Mean anomaly M 224.18074417131°
Mean motion n 1.09419157°/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
2021 May 09 07h 58m 35s -15° 28’ 14” 27.97 Puppis
2021 May 10 08h 00m 10s -15° 24’ 27” 27.99 Puppis
2021 May 11 08h 01m 44s -15° 20’ 31” 28.00 Puppis
2021 May 12 08h 03m 17s -15° 16’ 28” 28.01 Puppis
2021 May 13 08h 04m 50s -15° 12’ 16” 28.02 Puppis
2021 May 14 08h 06m 24s -15° 07’ 54” 28.04 Puppis
2021 May 15 08h 07m 54s -15° 03’ 24” 28.05 Puppis
2021 May 16 08h 09m 25s -14° 58’ 41” 28.06 Puppis
2021 May 17 08h 10m 55s -14° 53’ 45” 28.07 Puppis
2021 May 18 08h 12m 24s -14° 48’ 38” 28.08 Puppis
2021 May 19 08h 13m 53s -14° 43’ 17” 28.09 Puppis
2021 May 20 08h 15m 20s -14° 37’ 41” 28.11 Puppis
2021 May 21 08h 16m 45s -14° 31’ 46” 28.12 Puppis
2021 May 22 08h 18m 10s -14° 25’ 36” 28.13 Puppis