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Asteroid Near-Earth

2005 TQ45

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(2005 TQ45)

Where is it now

Distance from Sun
1.004 AU
True anomaly
161.1°
Distance from Earth
0.414 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 2005 TQ45 — 1.004 AU from the Sun 2005 TQ45
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2005 TQ45 is 0.414 AU from Earth today (3.4 light-minutes).

In the sky

Right ascension
19h 13m 36s
Declination
-36° 03′ 44″
Constellation
Sagittarius
Distance from Earth
0.41 AU
Elongation from the Sun
79.1° — well clear of the Sun

Favours the southern hemisphere; low or below the horizon from far north.

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
0.828 AU
Eccentricity
0.2325
Inclination
25.63°
Orbital period
275 days
Perihelion
0.635 AU
Aphelion
1.02 AU
Longitude of ascending node
14.86°
Argument of periapsis
185.87°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 7.2 LD
0.0185 AU
Tisserand (Jupiter)
6.987

Orbit quality

Orbit reasonably well determined (uncertainty code 5).

Observations used
38
Data arc
2 days
First observed
7 October 2005
Last observed
9 October 2005
Residual RMS
0.46 ″
Solution · Otto Matic
14 April 2021

Visual & observation

Absolute magnitude (H)
25.6

Discovery & classification

Aten Near-Earth Object

Close approaches 183 on record

Flyby geometry
Ecliptic flyby of 2005 TQ45 at 2027-03-16 18:13 UTC Top-down view of the ecliptic, Earth at the centre, for the 2027-03-16 18:13 UTC close approach of 2005 TQ45. Catalogue miss distance 143.1 LD · 5.5 × 10⁷ km. The curve is the geocentric path from 2027-03-13 to 2027-03-19, 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. Sun 143.1 LD · 5.5 × 10⁷ km 2027-03-16 18:13 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2027-03-16 18:13 UTC close approach of 2005 TQ45. Catalogue miss distance 143.1 LD · 5.5 × 10⁷ km. The curve is the geocentric path from 2027-03-13 to 2027-03-19, 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.

JPL Horizons

When (UTC) Body Distance Lunar distances Relative speed
2026-10-07 23:08:00 Earth 0.3839 AU 149.4 LD 19.4 km/s
2027-03-16 18:13:00 Earth 0.3677 AU 143.1 LD 18.9 km/s
2029-10-08 20:04:00 Earth 0.4469 AU 173.9 LD 21.1 km/s
2030-03-23 14:26:00 Earth 0.3634 AU 141.4 LD 19.2 km/s
2033-03-30 10:33:00 Earth 0.3626 AU 141.1 LD 19.4 km/s
2033-03-31 15:13:00 Venus 0.1092 AU 42.5 LD 17.2 km/s
2036-04-06 12:35:00 Earth 0.3656 AU 142.3 LD 19.5 km/s
2039-04-14 12:37:00 Earth 0.3722 AU 144.8 LD 19.5 km/s
2042-04-21 19:45:00 Earth 0.3824 AU 148.8 LD 19.3 km/s
2045-04-29 04:21:00 Earth 0.3951 AU 153.8 LD 19 km/s

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

Sources