album/Barnard 18,LBN 812 (DG 37) ,Herbig-Haro 319,466,467,468 (Taurus) END

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Barnard 18,LBN 812 (DG 37) ,Herbig-Haro 319,466,467,468 (Taurus) END.jpg - Barnard 18, LBN 812 (DG 37),HH 319 (Taurus) * September- October 2016* ASA N12 astrograph (f/3.6, 1078mm) * ASA DDM 85 mount * Unguided * FLI ML8300 CCD * LRGB Optec filter set * L:690 min R:360m G:330m B:370m *Thanks to Mr. Sakib Rasool for providing information of this target area.The B18 cloud is one of the most active sites of protostellaroutflow production in Taurus.The central part of the B18 cloud located about 40 (1.6 pc ) west of IRAS 04325+2402 contains a concentration of a dozenyoung stars including ZZ, HK, FY, and FZ Tau, and several previously known HH objects such as HH 319 (Haro et al. 1953).The new images clearly show that HH 319 located about 1 northeast of FY and FZ Tau, is a bow shockwith an orientation indicating motion toward the southeast. Thus these two nearby stars are not associated with this outflow, whose source must be an embedded infrared object located in thedark cloud to the northwest. HH 319 S is a compact 10 diameter partial ring of emission located about 30 due south of HH 319 near FY and FZ Tau. The northern part of the ring is brightest.References:DEEP IMAGING SURVEYS OF STAR-FORMING CLOUDS. V. NEW HERBIG–HAROSHOCKS AND GIANT OUTFLOWS IN TAURUSJohn Bally, Josh Walawender, and Bo ReipurthThe Astronomical Journal, 144:143 (7pp), 2012 November doi:10.1088/0004-6256/144/5/143C 2012. The American Astronomical Society.

Barnard 18, LBN 812 (DG 37),HH 319 (Taurus) * September- October 2016* ASA N12 astrograph (f/3.6, 1078mm) * ASA DDM 85 mount * Unguided * FLI ML8300 CCD * LRGB Optec filter set * L:690 min R:360m G:330m B:370m *Thanks to Mr. Sakib Rasool for providing information of this target area. The B18 cloud is one of the most active sites of protostellaroutflow production in Taurus.The central part of the B18 cloud located about 40 (1.6 pc ) west of IRAS 04325+2402 contains a concentration of a dozen young stars including ZZ, HK, FY, and FZ Tau, and several previously known HH objects such as HH 319 (Haro et al. 1953).The new images clearly show that HH 319 located about 1 northeast of FY and FZ Tau, is a bow shock with an orientation indicating motion toward the southeast. Thus these two nearby stars are not associated with this outflow, whose source must be an embedded infrared object located in the dark cloud to the northwest. HH 319 S is a compact 10 diameter partial ring of emission located about 30 due south of HH 319 near FY and FZ Tau. The northern part of the ring is brightest. References: DEEP IMAGING SURVEYS OF STAR-FORMING CLOUDS. V. NEW HERBIG–HARO SHOCKS AND GIANT OUTFLOWS IN TAURUS John Bally, Josh Walawender, and Bo Reipurth The Astronomical Journal, 144:143 (7pp), 2012 November doi:10.1088/0004-6256/144/5/143 C 2012. The American Astronomical Society.

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