Zone 272, Master Map Aquarius Sculptor Capricornus -26°00' ζ ε -28°00' λ c d η -30°00' Fomalhaut Piscis Austrinus θ δ γ γ β e τ No Map µ ι -34°00' υ -36°00' π No Map Grus No Map -38°00' γ ν υ -32°00' α -24°00' Normal View Zone Master, Normal View, 10 deg FOV λ σ1 σ2 23h 28m 23h 20m 23h 04m 22h 56m 22h 48m 22h 32m 22h 24m 22h 08m 22h 00m 21h 52m 21h 44m 21h 36m 21h 28m Zone 272, Map 1 Normal Image -26°00' -25°00' Sky charts generated by TheSky Software; used by permission of Software Bisque Inc. -27°00' NGC 7225 -28°00' λ Howe 60 -29°00' Eta PsAη NGC 7208 22h 30m 22h 25m 22h 20m 22h 15m 22h 10m 22h 05m 22h 00m Zone 272, Map 1 Mirror Image ζ -27°00' NGC 7225 -26°00' -25°00' Sky charts generated by TheSky Software; used by permission of Software Bisque Inc. 11 PsA -28°00' λ h3068 Howe 60 Eta PsA -29°00' η NGC 7208 h5311 Cordoba 247 22h 00m 22h 05m 22h 10m 22h 15m 22h 20m 22h 25m 22h 30m Zone 272, Map 2 Normal Image ζ -27°00' h5371 -26°00' -25°00' Sky charts generated by TheSky Software; used by permission of Software Bisque Inc. -28°00' ε Epsilon PsA -29°00' H VI 119 Alpha PsAα 23h 00m Fomalhaut 22h 55m 22h 50m 22h 45m 22h 40m 22h 35m 22h 30m Zone 272, Map 2 Mirror Image ζ Epsilon PsA -28°00' ε -27°00' h5371 -26°00' -25°00' Sky charts generated by TheSky Software; used by permission of Software Bisque Inc. -29°00' H VI 119 α 22h 30m 22h 35m 22h 40m 22h 45m 22h 50m 22h 55m Fomalhaut Alpha PsA 23h 00m Zone 272, Map 3 Normal Image -31°00' -30°00' Sky charts generated by TheSky Software; used by permission of Software Bisque Inc. Dunlop 241 -32°00' Stone 65 β Beta PsA δ -34°00' -33°00' γ 23h 00m 22h 55m 22h 50m 22h 45m 22h 40m 22h 35m 22h 30m Zone 272, Map 3 Mirror Image -31°00' -30°00' Sky charts generated by TheSky Software; used by permission of Software Bisque Inc. Stone 65 -32°00' Dunlop 241 β Beta PsA δ -34°00' -33°00' γ 22h 30m 22h 35m 22h 40m 22h 45m 22h 50m 22h 55m 23h 00m Zone 272 1 Reference Star, 9 Double Stars, 2 Galaxies Flamsteed E 11 PsA.................................................... 2 Eta PsA .................................................. 3 A H Alpha PsA.............................................. 5 H VI 119 ................................................ 6 h5371 ..................................................... 6 Howe 60................................................. 2 B Beta PsA ................................................ 7 N C Cordoba 247 .......................................... 3 NGC 7208 .............................................. 4 NGC 7225 .............................................. 4 D S Dunlop 241 ............................................ 8 Stone 65 ................................................. 8 -1- Zone 272 Zone 272, Map 1 Double Stars Easy 11 PsA Stone 56; ADS 15509; HD 208851; SAO 190800 Rating: 4 E Position: 2200-2738 A B Magnitude 7.50 10.50 Separation PA — — 12 36 Year — 1935 Spectra F0 V Colors W B Observations: C8 at 83x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 5.70 inches. Separation: AB = 4.40 miles. Distance (LY): 235 Total luminosity (Suns): 4.6 Howe 60 Rating: 4 E ADS 15647; HD 209969 Position: 2208-2804 A B Magnitude 8.28 9.50 Separation PA — — 3.3 + 143 - Notes: 1876: 3.1 @ 152. 39 measurements. Observations: C11 at 193x. -2- Year — 1992 Spectra G0 Colors Y W Zone 272 Scale model (in which the Sun is the size of a baseball): Diameter: A = 17.2 inches. Separation: AB = 1.18 miles. Distance (LY): 231 Total luminosity (Suns): 2.66 Moderate Cordoba 247 Rating: 3 M SAO 213460 Position: 2200-2959 A B Magnitude 8.92 9.78 Separation PA — — 2.6 = 263 + Year — 1991 Spectra F8/G0 V Colors W W Notes: 1901: 2.6 @ 259. 17 measurements. Observations: C11 at 339x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 3.45 inches. Separation: AB = 2.43 miles. Distance (LY): 600 Total luminosity (Suns): 11.1 Eta PsA 12 PsA; Bur 276; ADS 15536; HD 209014; SAO 190822 Rating: 4 M Position: 2201-2828 A B Magnitude 5.43 6.80 Separation PA — — 1.8 = 113 - Notes: 1874: 1.8 @ 120. 54 measurements. -3- Year — 1999 Spectra B8 Ve Colors bW bW Zone 272 The primary is a shell star. The primary might be a spectroscopic binary. Observations: C8 at 280x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 10.2 inches. Separation: AB = 2.83 miles. Distance (LY): 1,010 Total luminosity (Suns): 750 Deep Sky Objects Difficult NGC 7225 Other Names: PGC 68311 Rating: 4 D Position: 2213-2609 Type: Gal Surface brightness: 13.0 Class: SA(s)0/a: pec Dimensions: 2.0' x 1.0' Magnitude: 12.2 PA: 139 Observations: C8 at 206x. With averted vision and tube movement, I saw an oval patch, but no bright center. A star lies 30" NW. Radial velocity (km/sec): +4,895 NGC 7208 Other Names: PGC 68120 Rating: 5 D Position: 2208-2903 Type: Gal Surface brightness: 11.9 Class: SB0 Dimensions: 54" x 36" -4- Magnitude: 12.8 PA: 142 Zone 272 Observations: C11 at 98x. Very small with a bright starlike nucleus. It is flanked (E and W) b y two stars of 13m. A nice wall of 3 10m stars (running E-W) lies 10 min S. (Okie-Tex Star Party, 2003) Radial velocity (km/sec): +2,657 Zone 272, Map 2 Reference Star Alpha PsA (24 PsA; Fomalhaut, "the fish's mouth"; HD 216956; SAO 191524) Position: 2258-2937 Mag : 1.17 Spectrum : A3 V Color : W! Assumed distance: 25 light years Assumed luminosity (suns): 16.3 Notes: The diameter of Fomalhaut is about 0.0020". This star is an infra-red source. From James Kaler's Star Notes: Usually pronounced "fo-ma-low," the name means the "fish's mouth," and comes from a longer Arabic phrase meaning "the mouth of the southern fish." It at first seems like yet another ordinary white "class A" star similar to, though a bit cooler than, Vega in Lyra (which passes nearly overhead in temperate latitudes) with a surface temperature of about 8,500 Kelvin. Almost the same distance as Vega, it is over a full magnitude fainter to the eye as a result of somewhat lower mass, which results in a lower surface temperature and smaller size. In 1983 an orbiting satellite called IRAS discovered far more infrared radiation coming from the star than expected. Infrared is a signature of a cool source. The radiation is coming from a huge disk of matter four times the dimension of our planetary system that surrounds the star much like those that encompass Vega and Denebola. The disk is thought to be made of icy dust particles that have been warmed by the star. The planets of our Solar System almost certainly formed from the accumulation of dust in just such a disk. Recent observations of Fomalhaut's disk shows a hole in the middle. Could the hole be the result of planets that have removed the dust? So far none have been detected. -5- Zone 272 Double Stars Easy h5371 LDS 5027; ADS 16400; HD 217004; SAO 191529 Rating: 3 E Position: 2258-2607 A B Magnitude 7.60 9.18 Separation PA — — 9.0 + 343 - Year — 1991 Spectra G3 V Colors Y bW Notes: 1834: 5.0 @ 346. 21 measurements. Observations: C8 at 104x. A 9.5m star is 4 min S. This pair is the N vertex of a long E-W triangle. C11 at 115x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 3.39 inches. Separation: AB = 3.14 miles. Distance (LY): 224 Total luminosity (Suns): 4.1 H VI 119 BC=h5356; ADS 16149; HD 214599; SAO 191308 Rating: 4 E Position: 2240-2820 A B C BC Magnitude 6.30 7.11 8.17 Separation PA — — 86.5 159 + 3.0 + 68 + Notes: AB 1783: 87.0 @ 158. 22 measurements. -6- Year — 1991 1993 Spectra K0 III F5 IV Colors W W W Zone 272 BC 1834: 2.0 @ 59. 43 measurements. Spectroscopic measurements of the BC pair suggest a distance of 170 light years. The stars share a large common proper motion. Observations: C8 at 206x. Scale model (in which the Sun is the size of a baseball): Diameter: A = 46.2 inches; B = 12.3 inches. Separation: AB = 62.9 miles; BC = 2.18 miles. Distance (LY): 466 Total luminosity (Suns): 83 Zone 272, Map 3 Double Stars Easy Beta PsA Piazzi 7; HD 213398; SAO 213883 Rating: 3 E Position: 2231-3221 A B Magnitude 4.29 7.76 Separation PA — — 30.3 172 - Year — 1991 Notes: 1826: 35.3 @ 173. 28 measurements. This star is a shell star that is rotationally unstable. Observations: C8 at 104x. -7- Spectra A0 V Colors yW B Zone 272 Scale model (in which the Sun is the size of a baseball): Diameter: A = 9.00 inches. Separation: AB = 7.00 miles. Distance (LY): 148 Total luminosity (Suns): 31.2 Dunlop 241 Rating: 4 E HD 214122; SAO 213948 Position: 2237-3140 A B Magnitude 5.82 7.46 Separation PA — — 92.8 +! 31 - Year — 1991 Spectra K0 III K2 III Colors Y bW Notes: AB 1826: 84.4 @ 33. 17 measurements. The stars show similar proper motions, although Hipparcos gives different distances (312 and 760 light years). Observations: C8 at 104x. Moderate Stone 65 Rating: 5 M HD 215050; SAO 214037 Position: 2243-3138 A B Magnitude 8.65 9.44 Separation PA — — 2.9 32 - Notes: 1876: 3.4 @ 35. 18 measurements. Observations: C8 at 206x. -8- Year — 1991 Spectra F8 V Colors W W Zone 272 Zone 272 Mini-Catalog Double Stars Designation Position Rating Map Beta PsA 2231-3221 3E 3 h5371 2258-2607 3E 2 11 PsA 2200-2738 4E 1 Howe 60 2208-2804 4E 1 Dunlop 241 2237-3140 4E 3 H VI 119 2240-2820 4E 2 Cordoba 247 2200-2959 3M 1 Eta PsA 2201-2828 4M 1 Stone 65 2243-3138 5M 3 Component A B A B A B A B A B A B C BC A B A B A B Mag 4.29 7.76 7.60 9.18 7.50 10.50 8.28 9.50 5.82 7.46 6.30 7.11 8.17 8.92 9.78 5.43 6.80 8.65 9.44 Separation — 30.3 — 9.0 + — 12 — 3.3 + — 92.8 +! — 86.5 3.0 + — 2.6 = — 1.8 = — 2.9 - PA — 172 — 343 — 36 — 143 — 31 — 159 + 68 + — 263 + — 113 — 32 - Deep Space Objects Specifications Object NGC 7225 NGC 7208 Position 2213-2609 2208-2903 Rating 4D 5D Map 1 1 Type Gal (SA(s)0/a: pec) Gal (SB0) -9- Mag 12.2 12.8 Surface Br 13.0 11.9 Pop