AstroChallenge is a social network for amateur astronomers.

Record and share your observations of our solar system, deep space, and supernovae while location-determined calculations provide you with accurate observation info and customizeable finder charts.

Not sure what you're looking for? Try out some of our challenges and see what's up!

B
83%
Waning Gibbous


Top Observers

  1. Austin
    5562 
    74
  2. HamilTiller
    5560 
    53
  3. Tyler
    4830 
    104
  4. mnastro
    4583 
    65
  5. Codey737
    2960 
    38
  6. cyc66
    2891 
    42
  7. TractionMan
    1725 
    28
  8. Exoplanet1
    1645 
    29
  9. bllape
    1611 
    28
  10. wyee
    1150 
    8

Latest Observations
Page 52

Moon

Celestron Nexstar 6SE
100 points

Tested new Neximage camera on the moon. Really cool!

M67

Orion 10'' SkyQuest dobsonian
40 points

I observed M67 shortly after Praesepe and Jupiter, they made a pretty tight triangle. This particular open cluster isn't super impressive. I estimated about 50 bright stars and many more dimmer ones. The entire cluster fit into the FOV of my 25mm eyepeice, so it's not that large either. Worth a stop if you're in the area, though.

Beehive Cluster (Praesepe)

Orion Scenix 10x50 Binoculars
100 points

Praesepe a large scattering of diamond like stars in the middle of a pretty unimpressive Zodiac constellation: Cancer. On this particular night it was located about 2deg away from Jupiter, which made it very easy to locate even with a 35% moon and terrible seeing.

With my Q70 wide FOV eyepeice, it still doesn't fit into the FOV of my scope. This is an object that is better viewed in binoculars! One of my favorite objects in the sky, and not because I was born in July.

Sun

Orion 10'' SkyQuest dobsonian
100 points

The scope doesn't get a whole lot of vitamin D, so I took it out for a quick solar observation today.

There were 4 sunspot groups visible and many smaller evenly distributed freckles marking the surface. The heat of the direct sunlight made the entire image shimmer, which only added to the effect. A small amount of granulation was visible near the edges of the sun.

Saturn

Jason 304 T 60 mm f/10
100 points

26 March 2015 5:00 AM After retiring to Bed around Midnight, I awoke before the Period of Second Sleep, and went out, this time in Garden adjacent to my Domicile, and Observed Saturn with the Telescop of Jason. Where Sr. Galileo had noted “Ears” on the Sides of that Planet, I observed them to be more Pointed, as triangles affixed to the sides of a Circle. I have Indicated their Appearance in my Drawings.

THE MILKY WAY

Although Not Included in the Original List of the Galileic Observations, t...

Read more

See notes for Jupiter.

With the Aid of an Ephemeris, I was able to Determine that the Medician Star to the West was Ganymede. Being Brighter than the others, that may have been why it was the Only one Visible in the Pollution of Light that was Present.

The Subordinate Stars on the East Side of the Planet from Jupiter outward were Io, Europa and Callisto.

Ganymede

Jason 304 T 60 mm f/10
50 points

See notes for Jupiter.

With the Aid of an Ephemeris, I was able to Determine that the Medician Star to the West was Ganymede. Being Brighter than the others, that may have been why it was the Only one Visible in the Pollution of Light that was Present.

See notes for Jupiter.

With the Aid of an Ephemeris, I was able to Determine that the Medician Star to the West was Ganymede. Being Brighter than the others, that may have been why it was the Only one Visible in the Pollution of Light that was Present.

The Subordinate Stars on the East Side of the Planet from Jupiter outward were Io, Europa and Callisto.

The Planet was directly at the Meridian, and High in the Sky, necessitating a Most Awkard Posture when viewing, exacerbating all the Infirmities of Olde Age which Divine Providence has granted me. I was able, however to Identify one of the Subordinate Stars described by Sr. Galileo, directly to the West of the planet, which was Clearly Visible as a Round Disc, distinct from the Fixed Stars. Whether due to the Inconvenient Positioning, or the Lightening of the Sky due to the Profusion of Elect...

Read more

See notes for Jupiter.

With the Aid of an Ephemeris, I was able to Determine that the Medician Star to the West was Ganymede. Being Brighter than the others, that may have been why it was the Only one Visible in the Pollution of Light that was Present.

The Subordinate Stars on the East Side of the Planet from Jupiter outward were Io, Europa and Callisto.

Latest Comet

483P/PANSTARRS

Magnitude:
20.0, Peak: 17.84
Constellation
Bootes
Closest Approach
Oct. 15, 2000

Brightest Comets

A/2018 V3 ( K1924 359.9): -315.02
A/2018 V3 ( K193B 359.9): -315.02
A/2018 V3 ( K1913 359.8): -315.02
A/2018 V3 ( K1939 359.9): -315.02
A/2018 V3 ( K18C7 359.8): -315.02

Brightest Supernova

2016gxp

Last Observed Magnitude:
16.5 (Oct. 10, 2016 )
Galaxy:
NGC51
Type:
Ia
Recently observed supernovae

Recent Comments

๏ปฟslot <a href=https://lukwin88a.com/promotion/deposit-10-free-100/>zaa888.com</a>


<a href=https://mageex.ru><img src="https://259506.selcdn.ru/sites-static/site540319/00dd7cf1-c7f7-4863-ae13-8c38085e669f/00dd7cf1-c7f7-4863-ae13-8c38085e669f-1476955.png"></a> Уникальная шоу - программа, только для эксклюзивного праздника. <br>Уникальный формат выступления, в котором яркие трюки взорвут добрыми эмоциями Ваш праздник. <br> Вас ожидает абсолютно новый, взрывной формат шоу и полное погружение в чудесный мир волшебства, необычного гипноза, ментализма и фокусов. <a href=https://mageex.ru/>Лучшие иллюзионисты в Москве заказать</a> Ваша ...


Medications for chronic viral infections like HIV can suppress the virus and improve immune function. https://www.worknola.com/employer/view/350022 kamagra oral jelly in australia


<a href=https://kmgra.com/>kamagra original</a>


buy cialis <a href="https://cialis10fr.com/">acheter cialis en ligne livraison rapide</a> cialis pas cher en france