454094
Add to an observing list or journal →454094 (2013 BZ45)
454094 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.87 AU to 1.16 AU from the Sun; one orbit takes 373.5 days; it is about 0.17 km across. Discovered 19 January 2013 by Mt. Lemmon Survey. Orbit from the JPL solution of 1 March 2023.
Where is it now
- Distance from Sun
- 1.051 AU
- True anomaly
- 112.13°
- Distance from Earth
- 1.024 AU
- As of
- 3 November 2026
Two-body Kepler propagation — accurate to ~0.1% for major planets over decades, less so for highly-perturbed bodies. Use JPL Horizons for high precision.
In the sky
- Right ascension
- 19h 05m 38s
- Declination
- -28° 54′ 11″
- Constellation
- Sagittarius
- Distance from Earth
- 1.03 AU
- Elongation from the Sun
- 62.84° — well clear of the Sun
Favours the southern hemisphere; low or below the horizon from far north.
From your location
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Two-body approximation, good to about a degree for the planets — enough to find the constellation and know whether it is up.
Orbital elements
- Semi-major axis
- 1.015 AU
- Eccentricity
- 0.1447
- Inclination
- 11.85°
- Orbital period
- 373.5 days
- Perihelion
- 0.868 AU
- Aphelion
- 1.162 AU
- Longitude of ascending node
- 131.05°
- Argument of periapsis
- 98.78°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 9.6 LD
- 0.0247 AU
- Tisserand (Jupiter)
- 5.982
Orbit quality
Orbit very well determined (uncertainty code 0).
- Observations used
- 190
- Data arc
- 6.6 years
- First observed
- 19 January 2013
- Last observed
- 27 August 2019
- Residual RMS
- 0.4 ″
- Solution · Otto Matic
- 1 March 2023
Physical properties
- Mean radius
- 0.08 km
- Rotation period
- 0.48 hours
Visual & observation
- Geometric albedo
- 0.11
- Absolute magnitude (H)
- 21.87
Discovery & classification
- Discovered by
- Mt. Lemmon Survey
- Discovery date
- 19 January 2013
- Discovery site
- Mount Lemmon
Also known as 2013 BZ45
Close approaches 88 on record
Top-down view of the ecliptic, Earth at the centre, for the 2057-01-21 07:37 UTC close approach of 454094. Catalogue miss distance 185.3 LD · 7.12 × 10⁷ km. The curve is the geocentric path from 2057-01-18 to 2057-01-24, with a mark at UTC midnights and an arrow for the direction of motion. The circle is the Moon’s mean orbit; the Moon is plotted at closest approach. A ray shows the Sun’s direction. The labelled distance is the full separation. The drawn radius is the part that lies in the ecliptic plane. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate.
| When (UTC) | Body | Distance | Lunar distances | Relative speed |
|---|---|---|---|---|
| 2057-01-21 07:37:00 | Earth | 0.4762 AU | 185.3 LD | 20.1 km/s |
| 2058-01-26 19:46:00 | Earth | 0.3391 AU | 132.0 LD | 16.1 km/s |
| 2059-01-31 16:52:00 | Earth | 0.2013 AU | 78.3 LD | 12.3 km/s |
| 2060-02-04 10:21:00 | Earth | 0.0674 AU | 26.2 LD | 8.9 km/s |
| 2061-02-03 02:47:00 | Earth | 0.0707 AU | 27.5 LD | 6.7 km/s |
| 2062-01-16 02:37:00 | Earth | 0.1901 AU | 74.0 LD | 6.3 km/s |
| 2062-12-05 11:16:00 | Earth | 0.2676 AU | 104.1 LD | 5.4 km/s |
| 2063-06-27 22:48:00 | Earth | 0.1981 AU | 77.1 LD | 6.3 km/s |
| 2064-07-31 03:47:00 | Earth | 0.088 AU | 34.3 LD | 6.7 km/s |
| 2065-08-13 00:33:00 | Earth | 0.0577 AU | 22.5 LD | 8.5 km/s |
Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.
Sources
- visual properties: JPL SBDB (lookup)
- physical properties: JPL SBDB (lookup)
- physical properties: JPL SBDB (lookup)
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB