2021 BJ
ephemeris	date	magn	radius	delta (AU)	delta (LD)	delta (km)	ra	dec	elong	phase
Brightest	7 Nov 2024	22.9	1.005 AU	0.087 AU	33.82 LD	13,004,531 km	21h18m	+01°57'	96.7°	78.4°
Approach	29 Nov 2024	25.8	0.949 AU	0.047 AU	18.18 LD	6,988,346 km	17h31m	+10°37'	36.4°	141.9°
Today	2 Dec 2024	26.4	0.946 AU	0.048 AU	18.52 LD	7,118,896 km	16h48m	+10°47'	32.9°	145.5°

Based on its absolute magnitude (Hₒ) of 25.5 and an albedo between 0.25 and 0.05, the estimated diameter of 2021 BJ is 20 - 50 m.

The interactive orbit chart above shows the near-earth object's path through the solar system and its position at the given date. Green and blue lines are shown perpendicular to the ecliptic plane: Green if the path is above the ecliptic plane, blue if it is below.

(Left-click and drag to rotate the view; right-click and drag to move the view; use scroll wheel to zoom in our out.)

The light curve chart below shows the estimated development of the NEO's magnitude during its approach to earth.

The following all-sky chart shows the path of the NEO in the coming months.

The following chart shows the path of the NEO in the coming days or hours. The field of view is optimized for (~10x50) binoculars and finderscopes. A more printer-friendly version of the same chart can be found below.