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public LocationGreenwich, UK
Sunrise: 5:12 
Transit: 13:06 
Sunset: 20:59
wb_twilight   (Civil Twilight)   What's Visible Now?
Comets » 

Comet 157P/Tritton

Above the horizon.  Rise: 16:06 | Tran: 19:31 | Set: 22:57
Alt: 7.56°   Az: 207.86°   Direction: South-South-West

Comet 157P/Tritton is in the constellation of Hydra, at a distance of 593,195,318.0 kilometers from Earth. The current Right Ascension is 14h 39m 47s and the Declination is -26° 17’ 10” (apparent coordinates). The predicted magnitude of Comet 157P/Tritton is 25.05 (data provided by JPL Horizons).

Finder chart of 157P/Tritton in Hydra on July,23 2024
Map showing Comet 157P/Tritton in Hydra on July, 23 2024. Field of view: 50x30 degrees
View interactive star map

Celestial Coordinates


14h 39m 47s
-26° 17’ 10”
02h 04m 25s
16h 44m 13s


14h 38m 22s
-26° 10’ 52”

Additional Information


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

Today's rise, transit and set times of Comet 157P/Tritton from Greenwich, UK (all times relative to the local timezone Europe/London):

Azimuth: 116.3°
Max altitude: 12.2°
Azimuth: 243.7°
  • 157P/Tritton is above the horizon from Greenwich, UK.
  • Right now it is placed in the South-South-West direction at an altitude of 7.56° above the horizon.
  • Given its current magnitude, 157P/Tritton is visible only through long exposure photography.
  • Go to interactive sky chart

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.

Finder Charts

Finder chart of 157P/Tritton
Sky map showing Comet 157P/Tritton in Hydra on July, 23 2024. Field of view: 10x6 degrees. View in interactive sky chart

High precision deep sky finder chart, 60 arcmin wide, showing where Comet 157P/Tritton is right now. Click on the image to see a more detailed fullscreen tracker view.

RA: 14h 38m 22s
Dec: -26° 10’ 52”
Deep sky finder chart for Comet 157P/Tritton. Field of view: 60x40 arcmins. View in deep sky object tracker

Also check out Where is Comet 157P/Tritton?, a page that provides all the information needed to find Comet 157P/Tritton in the sky and additional links to sky charts.

Distance from Earth

The distance of Comet 157P/Tritton from Earth is currently 593,195,318.0 kilometers, equivalent to 3.9652657837 Astronomical Units. Light takes 32m 58.687s to travel from Comet 157P/Tritton and arrive to us.

32m 58.687s

The following chart shows the distance of Comet 157P/Tritton from Earth as a function of time. In the chart the distance data is measured in Astronomical Units and sampled with an interval of 1 day.

Chart of the distance of Comet 157P/Tritton from Earth in Astronomical Units (au)

The value of the reported distance might be somewhat inaccurate around the times of closest approach for objects passing extremely close to Earth. The value of the distance of 157P/Tritton from Earth is also available as a real time updated value in the Live Position and Data Tracker.

Closest Approach

Between 1 January 2013 and 30 December 2100, the closest approach of Comet 157P/Tritton to Earth happens on Sun Dec 14 2092 at a distance of 0.559012 Astronomical Units, or 83,626,991 kilometers:

Sun Dec 14 2092

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

Light Curve

The following chart is the predicted light curve (visual magnitude as a function of time) of Comet 157P/Tritton, according to the most recent ephemerides data. Magnitude data is sampled with a 2 days interval and there might be inaccuracies for objects changing brightness very rapidly during the course of a few days. For comets there could be large discrepancies between the observed and predicted brightness because of their highly dynamic behaviour.

Chart of the magnitude of Comet 157P/Tritton as a function of time

15 Days Ephemeris

The following table lists the ephemerides of Comet 157P/Tritton 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
2024 Jul 16 14h 38m 35s -26° 37’ 53” 24.96 Hydra
2024 Jul 17 14h 38m 41s -26° 34’ 57” 24.97 Hydra
2024 Jul 18 14h 38m 48s -26° 32’ 07” 24.98 Hydra
2024 Jul 19 14h 38m 56s -26° 29’ 22” 25.00 Hydra
2024 Jul 20 14h 39m 05s -26° 26’ 42” 25.01 Hydra
2024 Jul 21 14h 39m 14s -26° 24’ 07” 25.02 Hydra
2024 Jul 22 14h 39m 25s -26° 21’ 36” 25.03 Hydra
2024 Jul 23 14h 39m 36s -26° 19’ 11” 25.04 Hydra
2024 Jul 24 14h 39m 49s -26° 16’ 51” 25.05 Hydra
2024 Jul 25 14h 40m 02s -26° 14’ 35” 25.06 Hydra
2024 Jul 26 14h 40m 16s -26° 12’ 24” 25.08 Hydra
2024 Jul 27 14h 40m 31s -26° 10’ 18” 25.09 Hydra
2024 Jul 28 14h 40m 47s -26° 08’ 17” 25.10 Hydra
2024 Jul 29 14h 41m 04s -26° 06’ 21” 25.11 Hydra

Additional Resources