SYNOPTICAL TABLES.
357
| Number of typical forms of nebulæ (globular and spiral), | 2 |
| Hour of ascension richest in nebulæ, | 12 |
| Nebula in Andromeda, largest elliptical nebula visible to naked eye. | |
| Nebula in Andromeda,„ dark streaks running parallel to longer axis, | 2 |
| Largest annular nebula in Lyra. | |
| Planetary nebulæ, number of, about | 25 |
| Planetary nebulæ, largest, distance from β Ursæ Majoris, | 12′ |
| Planetary nebulæ, largest, apparent diameter, | 2′ 40″ |
| Light of nebula of 1' diameter if as bright as the Sun, in full Moons, | 780 |
| Double nebulæ, probable physical connexion as in double stars. | |
| Most brilliant nebulous star in Andromeda, No. | 65 |
| Regions of amorphous nebulse — Orion, Argo, Saggitarius, Cygnus, | 4 |
| Nebula in sword-handle of Orion, discovered by Huyghens in | 1656 |
| Nebula in sword-handle of Orion, diameter, horizontal, | 30′ |
| Nebula in sword-handle of Orion, diameter,vertical, | 24′ |
| Variable nebula, | 1 |
| Zodiacal light, maximum distance of vertex from Sun, | 90° |
| Zodiacal light, maximum breadth at base, | 30° |
| November meteors, passing through γ Leonis, period, | 12th-14th |
| Number of zones of asteroids, | 3 |
