Maximum
Since it was visible on Sunday, October 12, 2025, two green comets become easier to see – and more convenient. On Monday, October 13th, the brightest comet, Lemmon (C/2025 A6), will shift from being a single breakfast target in evening visibility, which appears low in the northwest about 90 minutes after sunset. The Dimmer Comet Swan (C/2025 R2) will appear in the southwest just below the Sabik bright star, making it relatively easy to try. Both will only remain objects for binoculars only for binoculars only, but with a downward moon moon rising late at night, both should become more apparent. Both are expected to reach their brightest on October 20-21, a date that coincides with a new moon and the Orionid Meteor shower, possibly creating one of the best Skywatching opportunities of the year.
C/2020 F3 (Neowise), or Comet Neowise, is a retrograde comet with an almost parabolic trajectory discovered on March 27, 2020. South of Spain.
aging
Basic events
There are two comets that are currently observed in binoculars – the brightest, comet lemmon, before sunrise and after sunset in the northern sky and Swan comet after sunset in the southwestern sky. Due to his long journey, Comet Lemmon now appears on both sides of the north heaven between dusk and dawn.
The best time to see both comets in one session is 90 minutes after sunset. However, Comet Lemmon can also see 90 minutes before sunrise.
You will need a pair of binoculars to see either the Comet, the 8×42 and the 10×50, or the like, the best choice. Both comets will appear as small, pervasive patches in a pair of binoculars, changing the position slightly every day. Those who observe at Dark Sky are far from street lighting and urban light pollution will have the best view of both comets.
A good way to find the position of the comets in your sky is to use Finder charts in In-the-sky.com or Stargazing applications such as Sky, Stellarium and Skysafari.
THE Database of County Observation He says Comet Lemmon will shine in +5.7 size and Swan comet a little dimmer in size +6.
Lemmon and Swan are the first comets to be visible in binoculars by comet Tsuchinshan-Atlas in October 2024.
Comet Lemmon and Swan: Better moments to look
The best time to locate Comet Lemmon and Comet Swan on Monday, October 14, 2025, is during a 30 -minute window that starts about 90 minutes after sunset where you are. Both are visible after the sunset, but in the opposite parts of the sky – Lemmon in the northwest, swan in the southwest. For New York, where the sunset is at 6:16 pm Edt, this means 7: 46-8: 16 pm EDT is ideal for evening viewing.
Comet Lemmon can also see before dawn. Look during a 30 -minute window that starts about 90 minutes before sunrise. At the sunrise at 7:05 am EDT in New York, the best time will be 5: 35-6: 05 am Edt-although previous observations may also reveal the comet increase in the northeast.
Where to find Comet Lemmon 90 minutes after sunset on Monday, October 14, 2025.
Star
Comet Lemmon: When and where to find it
Distance from the Sun: 73.9 million miles (118.9 million kilometers)
Distance from Earth: 63.9 million miles (102.9 million kilometers)
After sunset, search for Comet Lemmon just below the Big Dipper curve. Its height above the horizon varies depending on the location, but from New York will appear about 7 degrees above the northwestern horizon at 7:46 pm. EDT – about the width of the four fingers held along the arm – and will gradually sink as the Twilight deepens.
Prior to sunrise, the comet reappears in the northeast, to the right of the Big Dipper handle and the level of the Alioth star. From New York, it will stand about 24 degrees – about the range of your stretched hand – at 5:35 am. Edt, as Aphrodite rises to the east and rises higher as Dawn approaches.
Where to find Comet Lemmon 90 minutes before sunrise on Monday, October 14, 2025.
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Comet Swan: When and where to find it
Distance from the sun: 80.7 million miles (129.9 million kilometers)
Distance from Earth: 27.2 million miles (43.7 million kilometers)
The Bluish-Green Comet Swan will be visible on binoculars after sunset on Monday, October 13, 2025, shining low in the southwestern sky. Look just below Sabik, a bright star in Ophiuchus, and just above Antares in Scorpius. Its altitude varies depending on the location, but from New York will occur about 19 degrees – about the distance between the small finger and the index held except for the length of the arm – and will gradually sink to the horizon as the twilight weakens.
Where to find Comet Swan 90 minutes after sunset on Monday, October 14, 2025.
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How to photograph a comet
To photograph a comet, use either a smartphone or a manual camera without a mirror/DSLR in tripod. Smartphones in the “Night” or “Pro” mode can record large reports – allow raw operation if available. With DSLR lens and 50-105mm, start with ISO 800-1600, f/2.8 -f/4 diaphragm and 2-5 second shutter speed. In areas with light coated, increase the ISO slightly and shorten the reports. Use binoculars to locate the comet before framing your plan. Hand -focus on a bright star using live viewing or adjust the Infinity. Even if the comet tails are not visible to the naked eye, they will probably appear in your pictures.
Check my food Every day this month for a daily “comet tracker” with Finder charts and tips on promoting Comet Lemmon from mid -Northern Britain.
Further reading
