The document provides descriptions of several astronomical objects visible in tonight's night sky tour, including star clusters M36, M38, and M35, the spiral galaxy IC 342, the open clusters NGC 2232 and M47, and the nebulae NGC 2264, NGC 2261, and NGC 3521. Brief details are given for each object's age, composition, and notable visual features.

1. A Hop Across the Night Sky Tonight’s Missions Tour

2. M36 The youngest of three neighboring clusters in the southern part of Auriga, M36 is just 25 million years old and has about 60 known members. It was discovered, with M37 and M38, by the 17th Century astronomer Giovanni Batista Hodierna.

3. M 38 One of three neighboring clusters in the southern part of Auriga, M38 can be found 2.5 degrees NW of M36. It is about 220 million years old and was discovered, with M36 and M37, by the 17th Century astronomer Giovanni Batista Hodierna.

4. IC 342/Caldwell 5 IC 342 is a type-Sc spiral galaxy belonging to the Maffei 1 Group, the closest group of galaxies outside our Local Group. Were it not for the obscuring dust of our own galaxy, IC 342 would appear as the brightest galaxy in the sky.

5. M 35 Located near Gemini's feet, M35 is a 100-million-year-old cluster of several hundred member stars. The supernova remnant, IC 443, can be seen in the bottom left corner of Dome 1's wide-field view.

6. NGC 2232 Open cluster with pale yellow stars. In wide field view we can sometimes see horizontal streaks due to geosynchronous satellites.

7. NGC 2264/Cone Nebula A complex of four individual objects, NGC 2264 includes the Cone and FoxFur Nebulae, and the Snowflake and Christmas Tree Clusters. The Cone Nebula, positioned near the bottom edge of this complex, looks exactly like its name.

8. Spitzer Image Of Cone Neb

9. NGC 2261 Hubbles Variable Nebula R Mons, a massive Herbig Ae/Be star, has created this nebula from its own accretion disk. Gas and dust are blown into a thin-walled parabolic shell that is made visible by escaping light. Rotating dust casts shadows to effect a varying brightness.

10. Hubble’s View of this nebula

11. M 93/Starfish Cluster A smaller, younger cluster of about 80 member stars roughly 100 million years old, M93 has been noted to look like a starfish, a butterfly, and a triangle. This cluster has a linear diameter of 20-25 light years and includes several blue giants.

12. M 46/Velvet Cluster This 500 member cluster is about 300 million years old. The planetary nebula NGC 2438, most apparent in the high-mag view, is an unrelated, evolving star some 1500 light years closer and several hundred million years older.

13. M 47 Though discovered by Giovanni Hodierna in the 17th Century, and re-discovered by both Charles Messier and William Herschel a century later, this cluster was considered 'missing' until it was officially identified by TF Morris in 1959.

14. M 67/Ancient Open Cluster About five-hundred stars reside within this 'ancient' cluster, including two-hundred white dwarfs and more than one-hundred sun-like stars. At four-billion-years, M67 is nearly as old as our Solar System.

15. NGC 3521/Spider Web Galaxy SABbc spiral galaxy has mottled disk dust lanes and red H-II star forming regions.

16. NGC 3521

17. Hubble’s “Tuning Fork”