Comet A 1 Leonard will light up in February 65438.

In its 80,000-year orbit, comet Leonard A 1 will pop out of the solar system after passing the perihelion early next year. About 35,000 years ago, this comet reached the apohelion of 3,500 astronomical units from Oort Cloud. 65438+10.3, the upcoming perihelion will pass RD, and it will be 0.62 AU away from the sun in 2022, with the orbit of Venus in it.

Remember, A 1 Leonard may be an experienced long-term visitor to the inner solar system, and may perform well when approaching the sun. At present, it is predicted that some comets will reach the magnitude of +4, and may tease the naked eye brightness. This comet was only 0.233 astronomical unit (2 1.7 million miles or 34.9 million kilometers) from the Earth in February 12, which is another plus sign.

At present, A 1 Leonard is located at the dawn height of observers in the northern hemisphere of Canes Venatici constellation, and began to set to the sun in the first half of this month. We actually crossed the plane of the comet's orbit on February 8, 65438, and the comet may have shown the sun a sharp "anti-tail" peak at this time.

Another interesting effect may also have played a role during the appearance of comet A 1 Leonard 12. The tail phase angle of the solar-terrestrial comet will be greater than 120 degrees, reaching the maximum value of 160 degrees from February 9, 65438 to February 22, 65438 to February 4, and just passing the nearest wax point on the earth on 12. This creates ideal conditions for possible brightness surge, and adds the brightness of the tail to the coma of the comet itself.

Unfortunately, around 65438+February 15, after comet A 1 turns into the evening sky, its night vision will be a kind of shyness. For observers in the northern hemisphere, comets remain in a low position at dusk. However, as this comet retreats to Southern Pisces in early 2022, viewers in the southern hemisphere will get a better view.

The following are some key celestial dates of Comet A 1 Leonard:

28- Go into a coma

1- hybrid into venation vine

3- Photo manipulation: Very close to globular cluster messier 3.

4- incoming Bo? Telemetry result calculation station

6- Crossing the 4-degree angle from bright arcturus.

8-track side view from the earth

9- Cross into Serpens head

10- Crossing to Hercules

1 1- Crossing to Ophiuchus.

12—— Crossing the celestial equator to the south, passing 0.233 Au (34.9 million kilometers) away from the Earth, and moving half a degree every hour (the span of the full moon).

From morning to night, the sky 13 turns over, and at +4 it may be an order of magnitude.

14 passes near Ophiuchus level 3.3 and enters the serpent.

14- transit messier 16, passing through the sun 15 degrees.

15- cross the galactic plane to the south

15—— passing through Scutum briefly, passing near comet 252P linearly, passing through messier 17 at 1.5 degrees, and then passing through Sagittarius.

16 times passed near the star: +3.5 magnitude Xi^2 arrow, +3.8 Omicron arrow and +2.8 Albaldah, and crossed the ecliptic southward.

17- Five degrees through Venus

18 is only 0.028 astronomical unit (4.2 million kilometers) away from Venus.

2 1- hybridization into microscope

Fish that entered Australia 30 times

3- Reach the perihelion of 0.62 astronomical unit from the sun.

1, down to+10 orders of magnitude.

It can be seen that mid-June+February in 65438 is a busy day for Leonard A 1 Comet, because it is close to the bustling galactic plane.

When scanning a comet, binoculars are your best friend: just scan the suspicious target area and look for faint blur that can't be focused. At this stage, comets usually look like globular clusters and refuse to break down into individual stars. If Comet A 1 Leonard performed well and broke into the naked eye, things might become very interesting. Just like the F3 NEOWISE comet, A 1 Leonard may take photos with the foreground objects at dawn, thus forming a truly photogenic comet.

It is planned to capture the scene of comet A 1 Leonard at dawn in the cold morning of June 5438+February.