Question: The Heart of Nebula is located in what constellation that is opposite of the Big Dipper?

Context paragraphs:
Cosmic Hunt: The Cosmic Hunt is an old and widely distributed family of cognate myths.  They are stories about a large animal that is pursued by hunters, is wounded, and is transformed into a constellation.  Variants of the Cosmic Hunt are common in cultures of Northern Eurasia and the Americas, and include the story of Callisto in classical sources.  The prey animal is either a bear or an ungulate, and the constellation it is transformed into is typically the four stars of the bowl in the Big Dipper asterism of Ursa Major.  In some variants blood or grease may fall from the wounded animal, in an Iroquois version the blood causes leaves to change color in autumn.  Sometimes the hunters are also placed in the firmament, represented by the stars of the Big Dipper's handle.

Supercluster: The Big Dipper Anthology: Supercluster: The Big Dipper Anthology is a 3-disc release by the band Big Dipper.  The three disc set contains the band's debut EP "Boo-Boo" and their first two full-length albums "Heavens", and "Craps".  In addition to those three releases, the set also contains a variety of bonus tracks, plus 15 further songs which were recorded after their final album, "Slam".

Mrs. Washington: "Mrs. Washington" is a song written and performed by Gigolo Aunts and the title song from their 1993 and 1994 singles.  The song also appears on the album, "Flippin' Out".  The August 1993 7" single (catalog number: SM1 or 7SM1) includes a cover of "Serious Drugs", a 1992 single by BMX Bandits later included on their 1993 album, "Life Goes On".  That 1993 single was the first in a series of five releases by various bands on Fire Records under the Spawning Monsters moniker.  The April 1994 7" single (catalog number: blaze68) and CD single (catalog number: blaze68cd) include a cover of "Ask", a 1986 single by the Smiths that later appeared on their 1987 albums, "Louder Than Bombs" (US) and "The World Won't Listen" (UK).  The 12" single includes a cover of "Can You Get to That" by Funkadelic, a song from their 1971 album, "Maggot Brain".  Both the 12" single and the CD single include a cover of "Winsor Dam", a 1991 recording by Big Dipper that did not receive its formal release until the 2008 compilation album, "".  Note that while both the 12" single and CD single attribute the writing credits for "Winsor Dam" to Goffrier/Oliphant/Michener/Wallik, other sources identify the writer of the song as Big Dipper guitarist, Gary Waleik.  The 1994 single entered the UK singles charts on April 23, 1994, spending only one week there.  The cover art of the 1994 7" single, 12" single, and CD single features Chloë Sevigny.  The photo appears to be from the same session as the photo on the cover of the Full-On Bloom EP.

Heart Nebula: The Heart Nebula, IC 1805, Sharpless 2-190, lies some 7500 light years away from Earth and is located in the Perseus Arm of the Galaxy in the constellation Cassiopeia.  This is an emission nebula showing glowing ionized hydrogen gas and darker dust lanes.

Bugang: Bugang is a Daoist ritual dance or walk, based upon the limping "Yubu" "Steps of Yu" tradition, in which a Daoist priest paces through a supernatural pattern, such as stars in the Big Dipper or numbers in the Loshu magic square.  Texts from the (4th century) Shangqing School "revelations" contain the earliest descriptions of "bugang", frequently with the practitioner pacing among constellations, especially the Big Dipper's stars.  When religious Daoism began during the Six Dynasties period (220-589 CE), the expression "bugang tadou" 步罡踏斗 "pacing the guideline and treading on (the stars of) the Dipper" became popular.

Cope (song): "Cope" is a song written and performed by Gigolo Aunts.  Originally available as the B-side to the independently released 1991 "Bloom" 7" single, it was released as a single in its own right in October 1992 on Fire Records and later appeared on the Gigolo Aunts' album "Flippin' Out".  In support of that album, it was released as a promo single in the US in 1994 by RCA/BMG.  The promo single includes a cover of "Winsor Dam", a 1991 recording by Big Dipper that did not receive its formal release until the 2008 compilation album, "Supercluster: The Big Dipper Anthology".  Note that while the single attributes the writing credits for "Winsor Dam" to Goffrier/Oliphant/Michener/Waleik, other sources identify the writer of the song as Big Dipper guitarist, Gary Waleik.

Cassiopeia (constellation): Cassiopeia is a constellation in the northern sky, named after the vain queen Cassiopeia in Greek mythology, who boasted about her unrivalled beauty.  Cassiopeia was one of the 48 constellations listed by the 2nd-century Greek astronomer Ptolemy, and it remains one of the 88 modern constellations today.  It is easily recognizable due to its distinctive 'W' shape, formed by five bright stars.  It is opposite the Big Dipper.

Big Dipper (Geauga Lake): Big Dipper was a wooden roller coaster located at the defunct Geauga Lake amusement park in Bainbridge Township, Ohio.  Originally opened in 1925 as Sky Rocket, it was renamed Clipper in the late 1940s and eventually Big Dipper in 1969.  It was the oldest operating roller coaster in Ohio and seventh-oldest in the United States when it closed in 2007.  Designed by John A. Miller, the Big Dipper was also one of the last remaining roller coasters in the world from the legendary designer.  American Coaster Enthusiasts awarded the coaster its ACE Coaster Classic and ACE Coaster Landmark designations.  Efforts to sell, preserve, and restore the ride were unsuccessful.  The ride was demolished on October 17, 2016.

Yubu: Yubu, translated as Pace(s) of Yu or Step(s) of Yu, is the basic mystic dance step of religious Daoism.  This ancient walking or dancing technique typically involves dragging one foot after another, and is explained in reference to the legendary Yu the Great, who became lame on one side of his body from exerting himself while establishing order in the world after the Great Flood.  Daoist religions, especially during the Six Dynasties period (220–589), incorporated "Yubu" into rituals, such as the "Bugang" 步罡 "pace the Big Dipper", in which a Daoist priest would symbolically walk the nine stars of the "Beidou" 北斗 "Big Dipper" in order to acquire that constellation's supernatural energy.

Mizar and Alcor: Mizar and Alcor are two stars forming a naked eye double star in the handle of the Big Dipper (or Plough) asterism in the constellation of Ursa Major.  Mizar is the second star from the end of the Big Dipper's handle, and Alcor its faint companion.

Supporting paragraphs: Heart Nebula Cassiopeia (constellation)
Answer: Cassiopeia