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Asteroid Near-Earth

474611

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474611 (2004 SB56)

Where is it now

Distance from Sun
0.697 AU
True anomaly
316.56°
Distance from Earth
1.357 AU
As of
19 October 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.

Sun Earth — 0.996 AU from the Sun Earth 474611 — 0.697 AU from the Sun 474611
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 474611 is 1.357 AU from Earth today (11.3 light-minutes).

In the sky

Right ascension
11h 49m 31s
Declination
-00° 57′ 23″
Constellation
Virgo
Distance from Earth
1.36 AU
Elongation from the Sun
29.35° — near the Sun — look low at dusk or dawn

Visible from both hemispheres.

From your location

See how high it is right now, whether it is up after civil twilight, and when it rises and sets where you are.

How do I find my coordinates?

Google Maps on a computer

  1. Right-click the spot where you'll be observing.
  2. The first line of the menu is the coordinates, e.g. 51.50722, -0.12758 — click it and they're copied.
  3. Paste them above.

Google Maps on a phone

  1. Press and hold the spot to drop a pin.
  2. The coordinates appear in the search bar (or on the pin's card) — tap to copy, then paste above.

A full Google Maps link works too, but the short maps.app.goo.gl share links don't carry coordinates — copy the numbers instead. We round to about a kilometre; that's all the sky calculation needs.

Know your what3words address? Paste it, e.g. ///filled.count.soap. This is optional — the three words are sent to what3words to convert them, and we don't store the address or the result.

Your location stays in your browser and is sent only for this calculation. Using a what3words address is optional; if you do, the three words go to what3words to be converted and we don't record them. Set a location first, then you can save an email alert for this object. See our privacy policy.

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
0.866 AU
Eccentricity
0.2378
Inclination
18.69°
Orbital period
294.3 days
Perihelion
0.66 AU
Aphelion
1.072 AU
Longitude of ascending node
302.03°
Argument of periapsis
233.58°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 21.0 LD
0.0538 AU
Tisserand (Jupiter)
6.76

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
273
Data arc
21.28 years
First observed
25 September 2004
Last observed
5 January 2026
Residual RMS
0.48 ″
Solution · Otto Matic
25 August 2026

Visual & observation

Absolute magnitude (H)
19.26

Discovery & classification

Discovered by
LONEOS
Discovery date
25 September 2004
Discovery site
Anderson Mesa

Also known as 2004 SB56

Aten Near-Earth Object

Close approaches 51 on record

Flyby geometry
Ecliptic flyby of 474611 at 2033-07-25 22:52 UTC Top-down view of the ecliptic, Earth at the centre, for the 2033-07-25 22:52 UTC close approach of 474611. Catalogue miss distance 68.5 LD · 2.63 × 10⁷ km. The curve is the geocentric path from 2033-07-22 to 2033-07-28, 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. At closest approach the object is north of the ecliptic. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate. Sun 68.5 LD · 2.63 × 10⁷ km 2033-07-25 22:52 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2033-07-25 22:52 UTC close approach of 474611. Catalogue miss distance 68.5 LD · 2.63 × 10⁷ km. The curve is the geocentric path from 2033-07-22 to 2033-07-28, 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. At closest approach the object is north of the ecliptic. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate.

JPL Horizons

When (UTC) Body Distance Lunar distances Relative speed
2027-07-30 22:46:00 Venus 0.0399 AU 15.5 LD 14.2 km/s
2033-07-25 22:52:00 Earth 0.1761 AU 68.5 LD 9.4 km/s
2037-07-30 12:41:00 Earth 0.0534 AU 20.8 LD 11.2 km/s
2040-06-23 21:02:00 Venus 0.134 AU 52.2 LD 18.8 km/s
2041-08-06 17:35:00 Earth 0.1944 AU 75.7 LD 15.1 km/s
2050-12-15 00:35:00 Venus 0.0286 AU 11.1 LD 14.4 km/s
2062-07-30 13:02:00 Earth 0.0525 AU 20.4 LD 11.2 km/s
2063-11-12 14:19:00 Venus 0.053 AU 20.6 LD 16.3 km/s
2074-05-06 10:16:00 Venus 0.1434 AU 55.8 LD 13.3 km/s
2083-07-26 07:33:00 Earth 0.1888 AU 73.5 LD 9.4 km/s

Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.

Sources