NGC 2419

NGC 2419
NGC 2419 by HST Credit: NASA / STScI / WikiSky
Observation data (J2000 epoch)
Class	VII^[1]
Constellation	Lynx
Right ascension	07^h 38^m 08.51^s^[2]
Declination	+38° 52′ 54.9″^[2]
Distance	275 kly (from the Sun) 300 kly (from the GC) (84.2 kpc (Sun) 91.5 kpc (GC)^[3])
Apparent magnitude (V)	+9.06^[2]
Apparent dimensions (V)	6′
Physical characteristics
Mass	22,000 M_☉
Radius	260 ly^[4]
V_HB	20.45^[3]
Metallicity	${\begin{smallmatrix}\left[{\ce {Fe}}/{\ce {H}}\right]\end{smallmatrix}}$ = –2.14^[5] dex
Estimated age	12.3 Gyr^[5]
Other designations	GCl 112,^[2] Caldwell 25

NGC 2419 (also known as Caldwell 25) is a globular cluster in the constellation Lynx. It was discovered by William Herschel on December 31, 1788.^[6] NGC 2419 is at a distance of about 300,000 light years from the solar system and at the same distance from the galactic center.

NGC 2419 (Credit: Adam Block/Mount Lemmon SkyCenter/University of Arizona)

NGC 2419 bears the nickname "the Intergalactic Wanderer," which was bestowed when it was erroneously thought not to be in orbit around the Milky Way. Its orbit brings it further away from the galactic center than the Magellanic Clouds, but it can (with qualifications) be considered as an element of the Milky Way. At this great distance it takes three billion years to make one trip around the galaxy.^[7]

The cluster is dim in comparison to more famous globular clusters such as M13. Nonetheless, NGC 2419 is a 9th magnitude object and is readily viewed, in good sky conditions, with good quality telescopes as small as 102mm (four inches) in aperture. Intrinsically it is one of the brightest and most massive globular clusters of our galaxy, having an absolute magnitude of -9.42^[3] and being 900,000 times more massive than our Sun.^[8]

It was proposed too NGC 2419 could be, as Omega Centauri, the remnant of a dwarf spheroidal galaxy disrupted and accreted by the Milky Way.^[9] However, later research seems to disprove that possibility^[10]

Astronomer Leos Ondra has noted that NGC 2419 would be the "best and brightest" for any observers in the Andromeda Galaxy, looking for globular clusters in our galaxy since it lies outside the obscuring density of the main disk.^[7] This is analogous to the way the cluster G1 can be seen orbiting outside of the Andromeda Galaxy from Earth.

References

↑ Shapley, Harlow; Sawyer, Helen B. (August 1927), "A Classification of Globular Clusters", Harvard College Observatory Bulletin (849): 11–14, Bibcode:1927BHarO.849...11S.
1 2 3 4 "SIMBAD Astronomical Database". Results for NGC 2419. Retrieved 2006-11-17.
1 2 3 Harris, W.E. (1996). "A Catalog of Parameters for Globular Clusters in the Milky Way". AJ. 112: 1487. Bibcode:1996AJ....112.1487H. doi:10.1086/118116.
↑ distance × sin( diameter_angle / 2 ) = 260 ly. radius
1 2 Forbes, Duncan A.; Bridges, Terry (May 2010), "Accreted versus in situ Milky Way globular clusters", Monthly Notices of the Royal Astronomical Society, 404 (3): 1203–1214, arXiv:1001.4289, Bibcode:2010MNRAS.404.1203F, doi:10.1111/j.1365-2966.2010.16373.x.
↑ http://messier.seds.org/xtra/ngc/n2419.html NGC 4189 at SEDS
1 2 Ferris, Timothy. Seeing in the Dark. 2002. p. 244
↑ Baumgardt, H.; Côté, P.; Hilker, M.; Rejkuba, M.; et al. (2009). "The velocity dispersion and mass-to-light ratio of the remote halo globular cluster NGC2419". Monthly Notices of the Royal Astronomical Society. 396 (4): 2051–2060. arXiv:0904.3329. Bibcode:2009MNRAS.396.2051B. doi:10.1111/j.1365-2966.2009.14932.x.
↑ van den Bergh, Sidney; Mackey, A. D. (2004). "Globular clusters and the formation of the outer Galactic halo". Monthly Notices of the Royal Astronomical Society. 354 (3): 713–719. arXiv:astro-ph/0407346. Bibcode:2004MNRAS.354..713V. doi:10.1111/j.1365-2966.2004.08228.x.
↑ RIPEPI V.; CLEMENTINI G.; DI CRISCIENZO M.; GRECO C.; et al. (2007). "On the remote galactic globular cluster NGC 2419.". The Astrophysical Journal. 667: L61–L64. arXiv:0705.0966. Bibcode:2007ApJ...667L..61R. doi:10.1086/522000.

External links

Wikimedia Commons has media related to NGC 2419.

SEDS – NGC 2419
perseus.gr – NGC 2419 in a LRGB CCD image based on 2 hrs total exposure
APOD (2009-01-23) – NGC 2419
NGC 2419 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
NGC 2419 at the SIMBAD Astronomical Database.

Ids - Bibliography - Image - B&W Image.

Coordinates: 07^h 38^m 08.51^s, +38° 52′ 54.9″

Caldwell catalogue

List	C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C20 C21 C22 C23 C24 C25 C26 C27 C28 C29 C30 C31 C32 C33 C34 C35 C36 C37 C38 C39 C40 C41 C42 C43 C44 C45 C46 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C57 C58 C59 C60 C61 C62 C63 C64 C65 C66 C67 C68 C69 C70 C71 C72 C73 C74 C75 C76 C77 C78 C79 C80 C81 C82 C83 C84 C85 C86 C87 C88 C89 C90 C91 C92 C93 C94 C95 C96 C97 C98 C99 C100 C101 C102 C103 C104 C105 C106 C107 C108 C109

See also	Messier Catalogue Catalogue of Nebulae and Clusters of Stars New General Catalogue Index Catalogue Revised New General Catalogue Herschel 400 Catalogue

Book:Caldwell catalogue Category:Caldwell objects Portal:Astronomy Commons:Caldwell objects

New General Catalogue 2000 to 2499

NGC 2000 NGC 2001 NGC 2002 NGC 2003 NGC 2004 NGC 2005 NGC 2006 NGC 2007 NGC 2008 NGC 2009 NGC 2010 NGC 2011 NGC 2012 NGC 2013 NGC 2014 NGC 2015 NGC 2016 NGC 2017 NGC 2018 NGC 2019 NGC 2020 NGC 2021 NGC 2022 NGC 2023 NGC 2024 NGC 2025 NGC 2026 NGC 2027 NGC 2028 NGC 2029 NGC 2030 NGC 2031 NGC 2032 NGC 2033 NGC 2034 NGC 2035 NGC 2036 NGC 2037 NGC 2038 NGC 2039 NGC 2040 NGC 2041 NGC 2042 NGC 2043 NGC 2044 NGC 2045 NGC 2046 NGC 2047 NGC 2048 NGC 2049 NGC 2050 NGC 2051 NGC 2052 NGC 2053 NGC 2054 NGC 2055 NGC 2056 NGC 2057 NGC 2058 NGC 2059 NGC 2060 NGC 2061 NGC 2062 NGC 2063 NGC 2064 NGC 2065 NGC 2066 NGC 2067 NGC 2068 NGC 2069 NGC 2070 NGC 2071 NGC 2072 NGC 2073 NGC 2074 NGC 2075 NGC 2076 NGC 2077 NGC 2078 NGC 2079 NGC 2080 NGC 2081 NGC 2082 NGC 2083 NGC 2084 NGC 2085 NGC 2086 NGC 2087 NGC 2088 NGC 2089 NGC 2090 NGC 2091 NGC 2092 NGC 2093 NGC 2094 NGC 2095 NGC 2096 NGC 2097 NGC 2098 NGC 2099 NGC 2100 NGC 2101 NGC 2102 NGC 2103 NGC 2104 NGC 2105 NGC 2106 NGC 2107 NGC 2108 NGC 2109 NGC 2110 NGC 2111 NGC 2112 NGC 2113 NGC 2114 NGC 2115 NGC 2116 NGC 2117 NGC 2118 NGC 2119 NGC 2120 NGC 2121 NGC 2122 NGC 2123 NGC 2124 NGC 2125 NGC 2126 NGC 2127 NGC 2128 NGC 2129 NGC 2130 NGC 2131 NGC 2132 NGC 2133 NGC 2134 NGC 2135 NGC 2136 NGC 2137 NGC 2138 NGC 2139 NGC 2140 NGC 2141 NGC 2142 NGC 2143 NGC 2144 NGC 2145 NGC 2146 NGC 2147 NGC 2148 NGC 2149 NGC 2150 NGC 2151 NGC 2152 NGC 2153 NGC 2154 NGC 2155 NGC 2156 NGC 2157 NGC 2158 NGC 2159 NGC 2160 NGC 2161 NGC 2162 NGC 2163 NGC 2164 NGC 2165 NGC 2166 NGC 2167 NGC 2168 NGC 2169 NGC 2170 NGC 2171 NGC 2172 NGC 2173 NGC 2174 NGC 2175 NGC 2176 NGC 2177 NGC 2178 NGC 2179 NGC 2180 NGC 2181 NGC 2182 NGC 2183 NGC 2184 NGC 2185 NGC 2186 NGC 2187 NGC 2188 NGC 2189 NGC 2190 NGC 2191 NGC 2192 NGC 2193 NGC 2194 NGC 2195 NGC 2196 NGC 2197 NGC 2198 NGC 2199 NGC 2200 NGC 2201 NGC 2202 NGC 2203 NGC 2204 NGC 2205 NGC 2206 NGC 2207 NGC 2208 NGC 2209 NGC 2210 NGC 2211 NGC 2212 NGC 2213 NGC 2214 NGC 2215 NGC 2216 NGC 2217 NGC 2218 NGC 2219 NGC 2220 NGC 2221 NGC 2222 NGC 2223 NGC 2224 NGC 2225 NGC 2226 NGC 2227 NGC 2228 NGC 2229 NGC 2230 NGC 2231 NGC 2232 NGC 2233 NGC 2234 NGC 2235 NGC 2236 NGC 2237 NGC 2238 NGC 2239 NGC 2240 NGC 2241 NGC 2242 NGC 2243 NGC 2244 NGC 2245 NGC 2246 NGC 2247 NGC 2248 NGC 2249 NGC 2250 NGC 2251 NGC 2252 NGC 2253 NGC 2254 NGC 2255 NGC 2256 NGC 2257 NGC 2258 NGC 2259 NGC 2260 NGC 2261 NGC 2262 NGC 2263 NGC 2264 NGC 2265 NGC 2266 NGC 2267 NGC 2268 NGC 2269 NGC 2270 NGC 2271 NGC 2272 NGC 2273 NGC 2274 NGC 2275 NGC 2276 NGC 2277 NGC 2278 NGC 2279 NGC 2280 NGC 2281 NGC 2282 NGC 2283 NGC 2284 NGC 2285 NGC 2286 NGC 2287 NGC 2288 NGC 2289 NGC 2290 NGC 2291 NGC 2292 NGC 2293 NGC 2294 NGC 2295 NGC 2296 NGC 2297 NGC 2298 NGC 2299 NGC 2300 NGC 2301 NGC 2302 NGC 2303 NGC 2304 NGC 2305 NGC 2306 NGC 2307 NGC 2308 NGC 2309 NGC 2310 NGC 2311 NGC 2312 NGC 2313 NGC 2314 NGC 2315 NGC 2316 NGC 2317 NGC 2318 NGC 2319 NGC 2320 NGC 2321 NGC 2322 NGC 2323 NGC 2324 NGC 2325 NGC 2326 NGC 2327 NGC 2328 NGC 2329 NGC 2330 NGC 2331 NGC 2332 NGC 2333 NGC 2334 NGC 2335 NGC 2336 NGC 2337 NGC 2338 NGC 2339 NGC 2340 NGC 2341 NGC 2342 NGC 2343 NGC 2344 NGC 2345 NGC 2346 NGC 2347 NGC 2348 NGC 2349 NGC 2350 NGC 2351 NGC 2352 NGC 2353 NGC 2354 NGC 2355 NGC 2356 NGC 2357 NGC 2358 NGC 2359 NGC 2360 NGC 2361 NGC 2362 NGC 2363 NGC 2364 NGC 2365 NGC 2366 NGC 2367 NGC 2368 NGC 2369 NGC 2370 NGC 2371 NGC 2372 NGC 2373 NGC 2374 NGC 2375 NGC 2376 NGC 2377 NGC 2378 NGC 2379 NGC 2380 NGC 2381 NGC 2382 NGC 2383 NGC 2384 NGC 2385 NGC 2386 NGC 2387 NGC 2388 NGC 2389 NGC 2390 NGC 2391 NGC 2392 NGC 2393 NGC 2394 NGC 2395 NGC 2396 NGC 2397 NGC 2398 NGC 2399 NGC 2400 NGC 2401 NGC 2402 NGC 2403 NGC 2404 NGC 2405 NGC 2406 NGC 2407 NGC 2408 NGC 2409 NGC 2410 NGC 2411 NGC 2412 NGC 2413 NGC 2414 NGC 2415 NGC 2416 NGC 2417 NGC 2418 NGC 2419 NGC 2420 NGC 2421 NGC 2422 NGC 2423 NGC 2424 NGC 2425 NGC 2426 NGC 2427 NGC 2428 NGC 2429 NGC 2430 NGC 2431 NGC 2432 NGC 2433 NGC 2434 NGC 2435 NGC 2436 NGC 2437 NGC 2438 NGC 2439 NGC 2440 NGC 2441 NGC 2442 NGC 2443 NGC 2444 NGC 2445 NGC 2446 NGC 2447 NGC 2448 NGC 2449 NGC 2450 NGC 2451 NGC 2452 NGC 2453 NGC 2454 NGC 2455 NGC 2456 NGC 2457 NGC 2458 NGC 2459 NGC 2460 NGC 2461 NGC 2462 NGC 2463 NGC 2464 NGC 2465 NGC 2466 NGC 2467 NGC 2468 NGC 2469 NGC 2470 NGC 2471 NGC 2472 NGC 2473 NGC 2474 NGC 2475 NGC 2476 NGC 2477 NGC 2478 NGC 2479 NGC 2480 NGC 2481 NGC 2482 NGC 2483 NGC 2484 NGC 2485 NGC 2486 NGC 2487 NGC 2488 NGC 2489 NGC 2490 NGC 2491 NGC 2492 NGC 2493 NGC 2494 NGC 2495 NGC 2496 NGC 2497 NGC 2498 NGC 2499

Astronomical catalog List of NGC objects

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