1. BOOTES
Boötes is now one of the 88 modern constellations. It contains the fourth brightest star in the night sky, the orange-hued Arcturus. Boötes is home to many other bright stars, including eight above the fourth magnitude and an additional 21 above the fifth magnitude, making a total of 29 stars easily visible to the naked eye.
Visible : Feb, Mar, Apr, May, Jun, Jul, Aug, Sep
Spring - Summer
Arcturus is the brightest star in the northern celestial hemisphere  making it the brightest star north of the celestial equator, and the fourth brightest star in the night sky. This makes Arcturus the third brightest individual star.
It is a type K0 III orange giant star

2. Canis Major
Canis Major is a constellation in the southern celestial hemisphere. 
Visible : Jan, Feb, Mar, Apr, Dec
Winter - Spring
Canis Major contains Sirius, the brightest star in the night sky, known as the "dog star". It is bright because of its proximity to our Solar System. In contrast, the other bright stars of the constellation are stars of great distance and high luminosity

3. Cassiopeia
Cassiopeia is a constellation in the northern sky. It is easily recognizable due to its distinctive 'M' shape when in upper culmination but in higher northern locations when near lower culminations in spring and summer it has a 'W' shape, formed by five bright stars.
Visible : All through the year

4. Cepheus Cepheus is a constellation in the northern sky
Visible : All through the year

5. Cygnus Cepheus is a constellation in the northern sky
Visible : Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec
Spring – Summer - Winter

6. Draco Draco is a constellation in the far northern sky.
Visible : All through the year

7. Gemini
Gemini name is Latin for "twins," and it is associated with the twins Castor and Pollux in Greek mythology
Visible : Jan, Feb, Mar, Apr, May, Nov, Dec
Winter – Spring
The brightest star in Gemini is Pollux, and the second brightest is Castor.

8. Leo
Leo is one of the constellations of the zodiac, lying between Cancer to the west and Virgo to the east
Visible : Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Dec
Winter – Spring – Summer

9. Orion
Orion is a prominent constellation located on the celestial equator and visible throughout the world.
Visible : Jan, Feb, Mar, Apr, Nov, Dec
Winter – Spring
Its brightest stars are :
Rigel (Beta Orionis) a blue-white
Betelgeuse (Alpha Orionis), red supergiant

10. Scorpius
Scorpius It lies between Libra to the west and Sagittarius to the east. It is a large constellation located in the southern hemisphere near the center of the Milky Way.
Visible : Jun, Jul, Aug
Summer

11. Taurus
 Taurus is a large and prominent constellation in the northern hemisphere's winter sky. It is one of the oldest constellations, dating back to at least the Early Bronze Age when it marked the location of the Sun during the spring equinox.
Taurus hosts two of the nearest open clusters to Earth, the Pleiades and the Hyades, both of which are visible to the naked eye.
Visible : Jan, Feb, Mar, Apr, Oct, Nov, Dec
Fall – Winter
Brightest Stars:
The red giant Aldebaran is the brightest star
Pleiades is nearest open cluster

12. Ursa Major
Ursa Major is a constellation visible throughout the year in most of the northern hemisphere. It can be seen best in the month of April. 
Visible : All through the year

13. Ursa Minor Ursa Minor is a constellation in the northern sky
Visible : All through the year
Polaris, the brightest star in the constellation, is a yellow-white supergiant and brightest star in the night sky,

14. Virgo
Virgo it is the second largest constellation in the sky. It can be easily found through its brightest star, Spica
Visible : Feb, Mar, Apr, May, Jun, Jul
Spring – Summer

15. Constellation
Seasons visible
(Northern hemisphere)
Main Star
Bootes
Spring - Summer
Canis Major
Winter - Spring
Cassiopeia
All year around
Cephus
Cygnus
Winter – Spring – Summer
Draco
Gemini
Winter – Spring
Leo
Winter – Spring - Summer

16. Constellation
Seasons visible
(Northern hemisphere)
Main Star
Orion
Winter - Spring
Scorpius
Summer
Taurus
Fall - Winter
Ursa Major
All year around
Ursa Minor
Virgo
Spring - Summer

17. What is an Alpha Star ? What is a Beta Star ?
Within a constellation, the stars are tagged with Greek letters in the order of their brightness. The "alpha" is the brightest star in that constellation.
What is a Beta Star ?
A beta star is generally, but not always, the second brightest star within a constellation.