Through the Telescope

by James Baikie

		ε1 : 18 h. 41·1 m. + 39° 30′ : 4·6-6·3 : 12·4° : 2·85″. Pale yellow, pale orange yellow
ε
		ε2 : 4·9-5·2 : 127·3° : 2·15″. Both pale yellow.

ζ : 18 h. 41 m. + 37° 30′ : 4·2-5·5 : 150° : 43·7″. Easy, both pale yellow.

β : 18 h. 46 m. + 33° 15′ : 3-6·7 : 149·8° : 45·3″. 3 variable, 12·91 days. Spectroscopic binary.

M. 57 : 18 h. 50 m. + 32° 54′. Ring Nebula, between β and γ. Faint in small telescope. Gaseous.

Monoceros.

Σ 919 or 11 : 6 h. 24 m. − 6° 57′ : A 5-B 5·5-C 6 : AB 131·6° : 7·27″ : BC 105·7° : 2·65″. Fine triple.

Σ 950 or 15 : 6 h. 35 m. + 10°·0′ : 6-8·8-11·2 : 212·2°, 17·9° : 2·69″, 16·54″. Triple, green, blue, orange.

Ophiuchus.

ρ : 16 h. 19 m. − 23° 13′ : 6-6 : 355° : 3·4″.

39 : 17 h. 12 m. − 24° 11′ : 5·5-6 : 358° : 15″. Pale orange, blue.

Σ 2202 or 61 : 17 h. 40 m. + 2° 37′ : 5·5-5·8 : 93·4° : 20·68″. White.

Σ 2272 or 70 : 18 h. 1 m. + 2° 32′ : 4·5-6 : 178° : 2·10″. Yellow, purple. Rather difficult.

Orion.

(Rigel) β : 5 h. 10 m. − 8° 19′ : 1-8 : 202·2° : 9·58″. Bluish-white, dull bluish. Fair test for small glass.

δ : 5 h. 27 m. − 0° 23′ : 2-6·8 : 359° : 52·7″. White, very easy.

Σ 738 or λ : 5 h. 30 m. + 9° 52′ : 4-6 : 43° 1′ : 4·55″. Yellowish, purple. Pretty double.

θ : 5 h. 30 m. − 5° 28′ : 6-7-7·5-8. The 'Trapezium' in the Great Nebula.

M. 42 : 5 h. 30 m. − 5° 28′ : 6-7-7·5-8. Great Nebula of Orion.

Σ 752 or ι : 5 h. 30 m. − 5° 59′ : 3·2-7·3 : 141·7° : 11·50″. White, fine field.

σ : 5 h. 34 m. − 2° 39′. Fine multiple, double triple in small glass.

ζ : 5 h. 36 m. − 2° 0′ : 2-6 : 156·3° : 2·43″. Yellowish-green, blue.

U : 5 h. 50 m. + 20° 10′. Variable, 5·8-12·3. Period 375 days.

Pegasus.

M. 15 : 21 h. 25 m. + 11° 43′. Fine globular cluster, 4° N.E. of δ Equulei.

Perseus.

H. VI. 33·34 : 2 h. 13 m. + 56° 40′. Sword-handle of Perseus. Splendid field.

M. 34 : 2 h. 36 m. + 42° 21′. Visible to naked eye. Fine low-power field.

Σ 296 or θ : 2 h. 37 m. + 48° 48′ : 4·2-10-11 : 299°, 225° : 17·4″, 80″. Triple.

Σ 307 or η : 2 h. 43 m. + 55° 29′ : 4-8·5 : 300° : 28″. Orange-yellow, blue.

(Algol) β : 3 h. 2 m. + 40° 34′. Variable, 2·1 to 3·2. Period 2·8 days. Spectroscopic eclipsing binary.

Σ 464 or ζ : 3 h. 48 m: + 31° 35′ : 2·7-9·3 : 206·7° : 12·65°. Greenish-white, ashy. Three other companions more distant.

Σ 471 or ε : 3 h. 51 m. + 39° 43′ : 3·1-8·3 : 7·8° : 8·8″. White, bluish-white.

Pisces.

Σ 12 or 35 : 0 h. 10 m. + 8° 16′ : 6-8 : 150° : 12″. White, purplish.

Σ 88 or ψ : 1 h. 0·4 m. + 20° 56′ : 4·9-5 : 160° : 29·96″. White.

Σ 100 or ζ : 1 h. 8 m. + 7° 3′ : 4·2-5·3 : 64° : 23·68″. White, reddish-violet.

Σ 202 or α : 1 h. 57 m. + 2° 17′ : 2·8-3·9 : 318° : 2·47″. Reddish, white.

Sagitta.

Sagittarius.

M. 20 : 17 h. 56 m. − 23° 2′. The Trifid Nebula.

Scorpio.

β : 15 h. 59·6 m. − 19° 31′ : 2-5 : 25° : 13·6″. Orange, pale yellow.

(Antares) α : 16 h. 23 m. − 26° 13′ : 1-7 : 270° : 3″. Difficult with small glass.

Scutum Sobieskii.

M. 24 : 18 h. 12 m. − 18° 27′. Fine cluster of faint stars on Galaxy.

M. 17 : 18 h. 15 m. − 16° 14′. The Omega Nebula. Gaseous.

R : 18 h. 42 m. − 5° 49′. Irregular, variable, 4·8 to 7·8.

Serpens.

Σ 1954 or δ : 15 h. 30 m. + 10° 53′ : 3·2-4·1 : 189·3° : 3·94″. Yellow, yellowish-green, binary.

Σ 2417 or θ : 18 h. 51 m. + 4° 4′ : 4-4·2 : 103° : 22″. Both pale yellow.

Sextans.

Taurus.

Σ 528 or χ : 4 h. 16 m. + 25° 23′ : 5·7-7·8 : 24·2° : 19·48″. White, lilac.

Σ 716 or 118 : 5 h. 23 m. + 25° 4′ : 5·8-6·6 : 201·8 : 4·86″. White, bluish-white.

M. 1 : 5 h. 28 m. + 21° 57′. The Crab Nebula. Faint in small glass.

Triangulum.

Σ 227 or ι : 2 h. 7 m. + 29° 50′ : 5-6·4 : 74·6°: 3·79″. Yellow, blue, beautiful.

Ursa Major.

Σ 1523 or ξ : 11 h. 13 m. + 32° 6′ : 4-4·9 : 137·2° : 2·62″. Yellowish, binary. Period 60 years.

Σ 1543 or 57 : 11 h. 24 m. + 39° 54′ : 5·2-8·2 : 2·1° : 5·40″. White, ashy.

(Mizar) ζ : 13 h. 20 m. + 55° 27′ : 2·1-4·2 : 149·9° : 14·53″. Fine pair, yellow and yellowish-green. Alcor, 5 magnitude in same field with low power, also 8 magnitude star.

Ursa Minor.

(Polaris) α : 1 h. 22 m. + 88° 46′ : 2-9 : 215·6° : 18·22″. Yellow, bluish, test for 2-inch.

Virgo.

Σ 1670 or γ : 12 h. 37 m. − 0° 54′ : 3-3 : 328·3° : 5·94″. Both pale yellow. Binary, 185 years.

Vulpecula.

M. 27 : 19 h. 55 m. + 22° 27′. The Dumb-bell Nebula. Just visible with 1¼-inch. Gaseous.

INDEX

[A] | [B] | [C] | [D] | [E] | [F] | [G] | [H] | [I] | [J] | [K] | [L] | [M] | [N] | [O] | [P] | [R] | [S] | [T] | [U] | [V] | [W] | [Y] | [Z]

A

• Achromatic. See [Telescope]
• Adams, search for Neptune, [198-201]
• Aerolites, [227]
• Airy, search for Neptune, [197-201]
• Albireo, colour of, [236]
• Alcor, [241]
• Alcyone, [256]
• Aldebaran, [234];
  • colour of, [235]
• Algol, spectroscopic binary, [246];
  • diameter and mass of components, [246];
  • period of, [250];
  • variables, [250]
• Alps, lunar, [116];
  • valley of, [116], [117]
• Altai Mountains, [117]
• Altair, [234]
• Altazimuth, [25-28]
• Anderson discovers Nova Aurigæ, [253];
  • discovers Nova Persei, [254]
• Andromeda, great nebula of, [263], [264]
• Andromedæ γ, colour of, [236]
• Andromedes, [214], [215], [225], [226]
• Annular eclipse, [69], [70]
• Antares, [234]
• Anthelme observes new star, [252]
• Apennines, lunar, [116]
• Archimedes, [117]
• Arcturus, [234]
• Argelander, number of stars, [235]
• Ariadæus cleft, [119]
• Arided, [234]
• Arietis γ, observed by Hooke, [240]
• Aristillus, [117]
• Asteroids, number of, [150];
  • methods of discovery, [150], [151]
• Asterope, [256]
• Astræa, discovery of, [150]
• Atlas, [256]
• Atmosphere, solar, [75]
• Autolycus, [117]
• Auzout, aerial telescopes, [4]

B

• Bacon, Roger, [1]
• Bailey, cluster variables, [259]
• Ball, Sir R., [154], [262];
  • Popular Guide to the Heavens,' [278]
• Barnard, measures of Venus, [89];
  • markings on Venus, [95];
  • on Mars, [133];
  • measures of asteroids, [152];
  • discovers Jupiter's fifth satellite, [167];
  • measures of Saturn, [172];
  • drawing of Saturn, [172];
  • rotation of Saturn, [174];
  • on Saturnian markings, [184-185];
  • observation of Comet 1882 (iii.), [218]
• Bayer, lettering of stars, [278]
• Beer. See [Mädler]
• Bélopolsky, rotation of Venus, [96]
• Bessel, search for Neptune, [197]
• Betelgeux, [234];
  • colour of, [235]
• Biela's comet, [213], [214], [215], [224], [225]
• Birmingham observes Nova Coronæ, [252]
• Bode's law, [148], [149]
• Bond, G. P., discovers rifts in Andromeda nebula, [264]
• Bond, W. C., discovers Crape Ring, [178];
  • discovers Saturn's eighth satellite, [187];
  • verifies discovery of Neptune's satellite, [201]
• Boötis ε, double star, [242]
• Bouvard, tables of Uranus, [197]
• Bradley uses aerial telescope, [4]
• Bremiker's star-charts, [200]
• Brooks' comet, [210];
  • observation of comet 1882 (iii.), [218]
• Brorsen's comet, [213]

C