Where is Comet 77P/Longmore?

Comet 77P/Longmore is currently in the constellation of Cetus. Right now, from Greenwich, UK (change location), 77P/Longmore is not visible because it is below the horizon. You can check the rise and set times of comet 77P/Longmore to know exactly when it will be visible from your location.

The current apparent celestial coordinates of comet 77P/Longmore, useful for pointing an equatorial telescope, the hour angle, and the sidereal time are provided in the table below:

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Star map showing the position of comet 77P/Longmore in the constellation of Cetus on July, 17 2025
Field of view: 50x30 degrees
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Additional Resources on TheSkyLive

• Comet 77P/Longmore: Complete reference information on TheSkyLive.com.
• Where is comet 77P/Longmore?: Key information on where to find comet 77P/Longmore in the sky.
• Distance of comet 77P/Longmore from Earth: Find out how far comet 77P/Longmore is from Earth right now.
• How Bright is comet 77P/Longmore?: Current visual brightness (magnitude) and apparent size.
• Rise and Set Times: Rise and set times of comet 77P/Longmore from your location.
• Interactive Sky Map: Planetarium-style interactive visualization of comet 77P/Longmore's position in the sky.
• Live Position Tracker: High precision real time tracker of comet 77P/Longmore's position using deep space imagery.
• Ephemeris: 15 days comet 77P/Longmore's computed ephemeris.