You can see Cancer in the Spring time. From mid April to early May is the best time to view. Around 9:00 pm would give you the best results.
you can see perseusin the nourthernsky in winter you can see the constellation and in summer you can see just the head of perseusand that is your answer
Winter
Epsilon Cancri is a star in the constellation cancer which can be best viewed at 21:00 (9 p.m.) during the month of March.
The best season to see the Vela constellation in the night sky is during the southern hemisphere's summer months, typically from November to January. This is when the constellation is prominent and high in the sky for observers in the southern hemisphere.
The constellation closest to Leo is Cancer. Cancer is located to the west of Leo in the night sky.
The Cancer constellation is best seen in the Northern Hemisphere during the winter months. It is located between the constellations of Gemini and Leo. Look for the bright star cluster called the Beehive Cluster within the Cancer constellation to identify it in the night sky.
it is a star of a crab that reprsents cancer
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If you mean the constellation cancer, there is no such thing as a "distance to a constellation". It just doesn't make sense. A constellation is basically a general direction in space.
Aside from Cancer being the dimmest zodiacal constellation, the planet Mars is in Cancer (as of 4/21/10)
Aries is best seen during the month of December.
In the northern hemisphere, it can be seen at any time of year, as it is a circumpolar constellation.