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🌎  Greenwich, United Kingdom [change]

Asteroid (NEO) 1998 HH49

Asteroid (NEO) 1998 HH49 is a Near Earth Object. If you've heard news about a potential impact of this asteroid with the Earth, please check out Will Asteroid Asteroid (NEO) 1998 HH49 Impact Earth?.

Asteroid (NEO) 1998 HH49 is currently in the constellation of Aquarius. The current Right Ascension of Asteroid (NEO) 1998 HH49 is 22h 33m 29s and the Declination is -03° 46’ 47” (topocentric coordinates computed for the selected location: Greenwich, United Kingdom [change]). The current magnitude of Asteroid (NEO) 1998 HH49 is 22.31 (JPL).

Summary of key facts about Asteroid (NEO) 1998 HH49 [tip: you can also create a Quick Access page for this data if you access it frequently and would like to have a simpler view]:

22h 33m 29s
-03° 46’ 47”

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.

Additional information about Asteroid (NEO) 1998 HH49 available on TheSkyLive:

Available Resources

Asteroid (NEO) 1998 HH49 Position and Finder Charts

Below we provide Asteroid (NEO) 1998 HH49 finder charts showing where the object is right now in the sky with respect to the brightest stars. The first finder chart has a field of view of 50 degrees, while the second one has a field of view of 10 degrees. Click on each finder chart to access a full screen interactive Online Planetarium.

Map showing Asteroid (NEO) 1998 HH49 in Aquarius on November, 28 2021
Field of view: 50x30 degrees
View fullscreen
Map showing Asteroid (NEO) 1998 HH49 in Aquarius on November, 28 2021
Field of view: 10x6 degrees
View fullscreen
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Also check out Where is Asteroid (NEO) 1998 HH49?, a page that provides all the information needed to find Asteroid (NEO) 1998 HH49 in the sky and additional links to sky charts.

Asteroid (NEO) 1998 HH49 Distance from Earth

The distance of Asteroid (NEO) 1998 HH49 from Earth is currently 77,788,412 kilometers, equivalent to 0.519983 Astronomical Units. Light takes 4 minutes and 19.4742 seconds to travel from Asteroid (NEO) 1998 HH49 and arrive to us.

4 minutes and 19.4742 seconds

The following chart shows the distance of Asteroid (NEO) 1998 HH49 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.

Distance of Asteroid (NEO) 1998 HH49 from Earth between January 2013 and December 2100

The value of the reported distance might be somewhat inaccurate around the times of closest approach for objects passing extremely close to Earth.

Closest approach of Asteroid (NEO) 1998 HH49 to Earth

During the next 10 years, the closest approach of Asteroid (NEO) 1998 HH49 to Earth happens on Tue Oct 17 2023 at a distance of 0.007849 Astronomical Units, or 1,174,203 kilometers:

Tue Oct 17 2023

Asteroid (NEO) 1998 HH49 brightness

The current visual magnitude of Asteroid (NEO) 1998 HH49 is 22.31.


The following chart is the predicted light curve (visual magnitude as a function of time) of Asteroid (NEO) 1998 HH49, 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.

Predicted magnitude of Asteroid (NEO) 1998 HH49 between January 2013 and December 2100

Asteroid (NEO) 1998 HH49 rise and set times

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's Asteroid (NEO) 1998 HH49 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 93.6°
Max altitude: 35.1°
Azimuth: 266.7°

The rise and set times are defined as the time at which the upper limb of Asteroid (NEO) 1998 HH49 touches the horizon, considering the effect of the atmospheric refraction. As the atmospheric conditions cannot be modeled precisely the times reported here should be considered correct with an approximation of few minutes.

Asteroid (NEO) 1998 HH49 Orbital Elements

The following table lists the orbital elements of Asteroid (NEO) 1998 HH49 at epoch 16 December 2020 00:00 UTC (JD: 2459200.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.50234759
Orbit inclination i 8.41856747°
Perihelion distance q 0.77174135 AU
115,450,863 km
Aphelion distance Q 2.32978628 AU
348,531,068 km
Semi-major axis a 1.55076382 AU
231,990,965 km
Orbital period period 1.9300 years
705.3699 days
Date of perihelion transit Tp 2021-Sep-23 18:24:25
2,459,481.2670 JD
Next perihelion transit 2023-Aug-30 03:17
2,460,186.6368 JD
Argument of perihelion peri 287.87590222875°
Longitude of the ascending node node 23.48787111902°
Mean anomaly M 216.70481840052°
Mean motion n 0.51037053°/day

Visualization of Asteroid (NEO) 1998 HH49 Orbit

This 3d orbit diagram is a feature of our 3D Solar System Simulator and shows the orbit of Asteroid (NEO) 1998 HH49 with respect of the Sun and the orbits of the major planets. The position of Asteroid (NEO) 1998 HH49 and the planets along their orbits in this diagram accurately represents the current configuration of the objects in the Solar System. This is an experimental feature and it requires a WebGL enabled browser. Please provide us feedback!

Orbit Diagram of Asteroid (NEO) 1998 HH49
View Asteroid (NEO) 1998 HH49 in the 3D Solar System Simulator

Asteroid (NEO) 1998 HH49 15 Days Ephemeris

The following table lists the ephemerides of Asteroid (NEO) 1998 HH49 computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Asteroid (NEO) 1998 HH49 in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
2021 Nov 21 21h 49m 22s -09° 55’ 23” 22.18 Capricornus
2021 Nov 22 21h 55m 50s -09° 02’ 47” 22.19 Capricornus
2021 Nov 23 22h 02m 08s -08° 10’ 45” 22.21 Aquarius
2021 Nov 24 22h 08m 18s -07° 19’ 26” 22.22 Aquarius
2021 Nov 25 22h 14m 21s -06° 28’ 51” 22.24 Aquarius
2021 Nov 26 22h 20m 14s -05° 39’ 07” 22.26 Aquarius
2021 Nov 27 22h 26m 00s -04° 50’ 16” 22.28 Aquarius
2021 Nov 28 22h 31m 38s -04° 02’ 21” 22.30 Aquarius
2021 Nov 29 22h 37m 09s -03° 15’ 23” 22.33 Aquarius
2021 Nov 30 22h 42m 32s -02° 29’ 26” 22.35 Aquarius
2021 Dec 01 22h 47m 47s -01° 44’ 30” 22.38 Aquarius
2021 Dec 02 22h 52m 55s -01° 00’ 36” 22.41 Pisces
2021 Dec 03 22h 57m 56s -00° 17’ 44” 22.44 Pisces
2021 Dec 04 23h 02m 52s +00° 24’ 05” 22.47 Pisces