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public  Quebrada Larga, Honduras Quebrada Larga, Honduras  ⓘ
TimezoneAmerica/Tegucigalpa
Sunrise: 5:22 
Transit: 11:49 
Sunset: 18:16
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Comets » 

Comet 274P/Tombaugh-Tenagra

Below the horizon.  Rise: 17:52 | Tran: 23:24 | Set: 4:51
Alt: -8.48°   Az: 243.05°   Direction: West-South-West

Comet 274P/Tombaugh-Tenagra is in the constellation of Sagittarius, at a distance of 732,487,310.0 kilometers from Earth. The current Right Ascension is 18h 20m 40s and the Declination is -28° 05’ 01” (apparent coordinates). The estimated magnitude of comet 274P/Tombaugh-Tenagra, computed using JPL Horizons's data, is 25.72).

Finder Charts

The sky charts below show, at different resolutions, the position of comet 274P/Tombaugh-Tenagra in the sky. Click on each chart to access the interactive star map tool.

Star map showing the position of comet 274P/Tombaugh-Tenagra in the constellation of Sagittarius on F, d Y. Field of view: 50x30 degrees. View interactive star map.
Star map showing the position of comet 274P/Tombaugh-Tenagra in the constellation of Sagittarius on F, d Y. Field of view: 15x9 degrees. View in interactive star map.

The following map uses photographic imagery from the Digitized Sky Survey (DSS) to realistically visualize the precise position of comet 274P/Tombaugh-Tenagra against the stars in the background. The horizontal size of the map measures 60 arcminutes. Click on the image to access a more detailed full-screen view.

274P/Tombaugh-Tenagra
RA: 18h 19m 04s
Dec: -28° 05’ 45”
Simplified high-resolution deep sky chart showing the current position of comet 274P/Tombaugh-Tenagra. Field of view: 60 x 40 arcminutes. Go to the dedicated page

Equatorial Coordinates

Apparent

18h 20m 40s
-28° 05’ 01”
06h 08m 48s
00h 29m 28s

J2000

18h 19m 04s
-28° 05’ 45”

Additional Information

Sagittarius
n/a
n/a
n/a
n/a
25.72

The observed values of Magnitude, Coma Diameter and Tail Length are derived from the most recent observation recorded at the Comet Observers Database. The value of Predicted Magnitude comes from the JPL Horizons ephemerides service and, in the case of comets, might be inaccurate given the highly dynamic and unpredictable behavior of these objects. When available, please refer to the Observed Magnitude value and consider the Predicted Magnitude as a directional indication. We acknowledge with thanks the comet observations from the COBS Comet Observation Database contributed by observers worldwide and used in this table to report recent comet observations.

Rise and Set Times

The following table lists today's rise, transit and set times of comet 274P/Tombaugh-Tenagra from Quebrada Larga, Honduras (all times relative to the local timezone America/Tegucigalpa):

Azimuth: 118.1°
Max altitude: 47.8°
Azimuth: 241.9°

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.

Distance from Earth

The distance of comet 274P/Tombaugh-Tenagra from Earth is currently 732,487,310.0 kilometers, equivalent to 4.8963752397 Astronomical Units. Light takes 40m 43.315s to travel from comet 274P/Tombaugh-Tenagra and arrive to us.

732,487,310.0
4.8963752397
40m 43.315s

The following graph shows the distance of comet 274P/Tombaugh-Tenagra from Earth as a function of time. In the chart the distance is measured in Astronomical Units and the data is sampled with an interval of 1 day.

Chart of the distance of comet 274P/Tombaugh-Tenagra from Earth in Astronomical Units (au)
Note: The values in this chart may not be entirely accurate around the time of closest approach for objects passing very close to Earth at high speed (e.g., Near-Earth Objects).

The value of the distance of 274P/Tombaugh-Tenagra from Earth is also available as a real time updated value in the live position tracker.

Closest Approach to Earth

In the period between January 1, 2000 and December 31, 2099, the closest approach of comet 274P/Tombaugh-Tenagra to Earth will happen on Friday 5 January 2057 at a distance of 1.153057 Astronomical Units, or 172,494,906 kilometers:

Friday 5 January 2057
172,494,906
1.153057

Note: the values for the closest approach are computed with a sampling interval of 1 day.

Light Curve

The following chart shows the light curve of comet 274P/Tombaugh-Tenagra, i.e., its apparent magnitude as a function of time. The curve is calculated using the latest ephemerides provided by JPL Horizons. The magnitude data is sampled with the interval of 2 days. Because of this sampling, inaccuracies may occur for objects that have large variations of brightness over a few days. For comets, large discrepancies can arise between the calculated brightness and the observations due to their highly dynamic, and not always precisely predictable, behavior.

Chart of the magnitude of comet 274P/Tombaugh-Tenagra as a function of time

Orbital Elements

The following table lists the orbital elements of comet 274P/Tombaugh-Tenagra at epoch November, 30 2015 00:00 UTC (JD: 2457357.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.43970884
Orbit inclination i 15.83272198°
Perihelion distance q 2.44517649 AU
365,793,198 km
Aphelion distance Q 6.28305858 AU
939,932,187 km
Semi-major axis a 4.36411754 AU
652,862,692 km
Orbital period period 9.1170 years
3,329.9912 days
Date of perihelion transit Tp February 23, 2013
2,456,347.0821 JD
Next perihelion transit April 7, 2022
2,459,677.0733 JD
Argument of perihelion peri 38.590173933136°
Longitude of the ascending node node 81.368552971308°
Mean anomaly M 109.23465942184°
Mean motion n 0.10810839°/day

Orbit Visualization

The following chart is a 3D animated visualization of the orbit of comet 274P/Tombaugh-Tenagra relative to the other major objects in the Solar System. You can access more advanced features using our 3D Solar System Viewer.

15 Days Ephemeris

The following table lists the ephemerides of comet 274P/Tombaugh-Tenagra computed for the past and next 7 days, with a 24 hours interval. Apparent celestial coordinates are provided.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
Jun 24 2025 18h 25m 15s -27° 55’ 18” 25.70 Sagittarius
Jun 25 2025 18h 24m 39s -27° 56’ 42” 25.71 Sagittarius
Jun 26 2025 18h 24m 02s -27° 58’ 03” 25.71 Sagittarius
Jun 27 2025 18h 23m 25s -27° 59’ 24” 25.71 Sagittarius
Jun 28 2025 18h 22m 48s -28° 00’ 42” 25.71 Sagittarius
Jun 29 2025 18h 22m 11s -28° 01’ 58” 25.72 Sagittarius
Jun 30 2025 18h 21m 34s -28° 03’ 13” 25.72 Sagittarius
Jul 01 2025 18h 20m 58s -28° 04’ 26” 25.72 Sagittarius
Jul 02 2025 18h 20m 21s -28° 05’ 37” 25.73 Sagittarius
Jul 03 2025 18h 19m 45s -28° 06’ 47” 25.73 Sagittarius
Jul 04 2025 18h 19m 09s -28° 07’ 55” 25.73 Sagittarius
Jul 05 2025 18h 18m 33s -28° 09’ 01” 25.74 Sagittarius
Jul 06 2025 18h 17m 57s -28° 10’ 06” 25.74 Sagittarius
Jul 07 2025 18h 17m 21s -28° 11’ 08” 25.75 Sagittarius

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