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public  Bago, Myanmar (Birmania) Bago, Myanmar (Birmania)  ⓘ
TimezoneAsia/Rangoon
Sunrise: 5:35 
Transit: 12:08 
Sunset: 18:41
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Comets » 

Comet 398P/Boattini

Below the horizon.  Rise: 21:37 | Tran: 3:17 | Set: 9:01
Alt: -33.96°   Az: 264.45°   Direction: West

Comet 398P/Boattini is in the constellation of Aquarius, at a distance of 392,496,031.0 kilometers from Earth. The current Right Ascension is 22h 01m 58s and the Declination is -14° 03’ 40” (apparent coordinates). The estimated magnitude of comet 398P/Boattini, computed using JPL Horizons's data, is 22.99).

Finder Charts

The sky charts below show, at different resolutions, the position of comet 398P/Boattini in the sky. Click on each chart to access the interactive star map tool.

Star map showing the position of comet 398P/Boattini in the constellation of Aquarius on F, d Y. Field of view: 50x30 degrees. View interactive star map.
Star map showing the position of comet 398P/Boattini in the constellation of Aquarius 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 398P/Boattini 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.

398P/Boattini
RA: 22h 00m 35s
Dec: -14° 11’ 04”
Simplified high-resolution deep sky chart showing the current position of comet 398P/Boattini. Field of view: 60 x 40 arcminutes. Go to the dedicated page

Equatorial Coordinates

Apparent

22h 01m 58s
-14° 03’ 40”
08h 06m 40s
06h 08m 38s

J2000

22h 00m 35s
-14° 11’ 04”

Additional Information

Aquarius
n/a
n/a
n/a
n/a
22.99

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 398P/Boattini from Bago, Myanmar (Birmania) (all times relative to the local timezone Asia/Rangoon):

Azimuth: 104.1°
Max altitude: 58.6°
Azimuth: 255.9°

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 398P/Boattini from Earth is currently 392,496,031.0 kilometers, equivalent to 2.6236739144 Astronomical Units. Light takes 21m 49.226s to travel from comet 398P/Boattini and arrive to us.

392,496,031.0
2.6236739144
21m 49.226s

The following graph shows the distance of comet 398P/Boattini 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 398P/Boattini 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 398P/Boattini 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 398P/Boattini to Earth happened on Wednesday 23 December 2020 at a distance of 0.375438 Astronomical Units, or 56,164,772 kilometers:

Wednesday 23 December 2020
56,164,772
0.375438

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 398P/Boattini, 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 398P/Boattini as a function of time

Orbital Elements

The following table lists the orbital elements of comet 398P/Boattini at epoch December, 16 2020 00:00 UTC (JD: 2459200.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.58256817
Orbit inclination i 11.01527054°
Perihelion distance q 1.30569341 AU
195,328,954 km
Aphelion distance Q 4.95014681 AU
740,531,424 km
Semi-major axis a 3.12792011 AU
467,930,189 km
Orbital period period 5.5321 years
2,020.6072 days
Date of perihelion transit Tp December 26, 2020
2,459,210.2444 JD
Next perihelion transit July 9, 2026
2,461,230.8517 JD
Argument of perihelion peri 320.23471164812°
Longitude of the ascending node node 127.46296718978°
Mean anomaly M 358.26389165887°
Mean motion n 0.17816426°/day

Orbit Visualization

The following chart is a 3D animated visualization of the orbit of comet 398P/Boattini 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 398P/Boattini 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 26 2025 22h 03m 17s -13° 39’ 25” 23.13 Aquarius
Jun 27 2025 22h 03m 10s -13° 42’ 23” 23.11 Aquarius
Jun 28 2025 22h 03m 01s -13° 45’ 29” 23.09 Aquarius
Jun 29 2025 22h 02m 52s -13° 48’ 42” 23.07 Aquarius
Jun 30 2025 22h 02m 41s -13° 52’ 03” 23.05 Aquarius
Jul 01 2025 22h 02m 29s -13° 55’ 32” 23.03 Aquarius
Jul 02 2025 22h 02m 15s -13° 59’ 09” 23.01 Aquarius
Jul 03 2025 22h 02m 01s -14° 02’ 53” 22.99 Aquarius
Jul 04 2025 22h 01m 45s -14° 06’ 45” 22.97 Aquarius
Jul 05 2025 22h 01m 28s -14° 10’ 45” 22.95 Aquarius
Jul 06 2025 22h 01m 10s -14° 14’ 52” 22.93 Aquarius
Jul 07 2025 22h 00m 51s -14° 19’ 06” 22.91 Aquarius
Jul 08 2025 22h 00m 30s -14° 23’ 29” 22.89 Aquarius
Jul 09 2025 22h 00m 09s -14° 27’ 58” 22.87 Aquarius

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