Ran out of time this season and should come back later for more HA detail. One other image on Astrobin by Kurious George has the HA:

Kurious George's Sh 289

From GalaxyMap:

Avedisova concludes that Sh 2-289 is ionised by the B0.5 V class LSS 86 and an uncatalogued B1 V class star (MFJ Sh 2-289 2). Curiously, she omits two other ionising stars mentioned by MFJ: LS 85 and MFJ Sh 2-289 4. (Both are B-class according to SIMBAD.)

One huge distance estimate of more than ten thousand parsecs may place this nebula beyond even the Cygnus (Outer) arm. However, closer estimates are also available.

Sh 2-289 is located well below the galactic plane, and this may in part be related to an outer galaxy warp in the third quadrant which bends the galactic disk downwards.

GENERAL NOTE ON SHARPLESS2 OBJECTS>>>>>>>>>>>>>

I have been on a project for several years now to image all the Sharpless2 Objects that I can see from my location near San Francisco. I chose these because they are visible in light polluted areas. These objects generally represent left over Hydrogen along the edge of the Milky Way that has gotten molded into interesting shapes.

There are 313 Sh2 objects.

As of the date when this image was posted:

I had imaged 248 (79%).

There are 12 too diffuse/large to image with my set up (Sh2 111, 117, 122, 131, 132, 145, 178, 218, 221, 230, 268 and 310).

There are 6 that are never above 14 DEG elevation at my site and are too low for my 17 DEG min due South (Sh2 2-6 and 8).

This leaves me 47 potentially still do-able and most are in Expert Scheduler waiting for them to pass by.

The first one was taken on December 23, 2013.

Many were taken with my old Tak 180 ED, which had a wide field of view, but was replaced with my Stellarvue 130, which is more narrow field. I have also taken two very wide field HA images with my Nikon D800 and a 50mm lens.

This is my collection:

Sharpless2

Wide-Angle Hydrogen Alpha Nikon Image Sh2 79-171

Please note there is also a Sharpless2 Group with now more than 1500 examples.

Sharpless2 Group

Other useful links include:

Gary Imm's Collection

GalaxyMap's Collection

The Sharpless Catalog

The MDW H-alpha Sky Survey

Reiner Vogel's detailed observing catalog

Hope you enjoy these obscure but interesting objects...