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Spectrogram of the Nebula N. G. C. 2681

✍ Scribed by R. F. Sanford and M. L. Humason

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Note on the Nebula G. C. 4036 = N. G. C.

✍ E. E. Barnard 📂 Article 📅 1890 🏛 John Wiley and Sons 🌐 English ⚖ 194 KB 👁 1 views

Note on the Nebula N. G. C. 6610

✍ Frederick H. Seares 📂 Article 📅 1916 🏛 University of Chicago Press 🌐 English ⚖ 219 KB

The Cluster G. C. 1420 and the Nebula N.

✍ E. E. Barnard 📂 Article 📅 1889 🏛 John Wiley and Sons 🌐 English ⚖ 108 KB 👁 1 views

The Parallax of the Planetary Nebula N.

✍ Adriaan Van Maanen 📂 Article 📅 1917 🏛 National Academy of Sciences 🌐 English ⚖ 474 KB

The Radial Velocity of the Nebula N. G.

✍ Francis G. Pease 📂 Article 📅 1915 🏛 University of Chicago Press 🌐 English ⚖ 217 KB

Changes in the Form of the Nebula N. G.

✍ Edwin P. Hubble 📂 Article 📅 1916 🏛 National Academy of Sciences 🌐 English ⚖ 164 KB